Pennsylvania Sugar |
Philadelphia |
PA |
Pennsylvania Railroad |
Chester |
PA |
Retreat State Hospital |
Hunlock Creek |
PA |
Boston Ohio Railroad Company |
Glenwood |
PA |
S.s. Midland |
Philadelphia |
PA |
Boston Ohio Railroad Company |
New Castle |
PA |
Springwell Foundry |
Chester |
PA |
Riley Stoker Corporation, 28th Christian |
Philadelphia |
PA |
Union Paving Company |
Bridgeport |
PA |
Philadelphia Electric Company |
Richmond |
PA |
Whitman Chocolate |
Philadelphia |
PA |
Fairless Steel |
Fairless Hills |
PA |
Marple Township |
Delaware County |
PA |
Lone Star Cement |
Nazareth |
PA |
Penn Treaty Overall |
Philadelphia |
PA |
Saba Power |
Farouqabad |
PA |
Selinsgrove State School |
Selingrove |
PA |
Allegheny Airlines Terminal |
Pittsburgh |
PA |
General Steel Castings |
Bodyston |
PA |
Westinghouse Electric Corp |
Beaver |
PA |
Alon Engineering Corp |
Pittsburgh |
PA |
Bliss Silk Throwing Company Jessup Plant |
Dickson City |
PA |
U.s. Steel Corporation |
Mckees Rocks |
PA |
Gulf Refining Company |
Girard Point |
PA |
Brownsville Golden Age Nu |
Brownsville |
PA |
Koppers Company (a/k/a Arco/polymers, Inc. Or Sinclair-koppers) |
Kabuta |
PA |
Us Steel Corporation Imperial |
W Oil City |
PA |
Sun Oil Company Marcus Hook Refinery |
Marcus Hook |
PA |
American Olean |
Quakertown |
PA |
Mesta Machine Co (a/k/a United Engineering Foundry Co.) |
New Castle |
PA |
Kawneer Co Inc |
Bloomsburg |
PA |
Episcopal Hospital |
Philadelphia |
PA |
Bickley Furnaces Inc |
Philadelphia |
PA |
Philadelphia Navy Yard Training School |
Philadelphia |
PA |
Circle Heating Service |
Pittsburgh |
PA |
Oswald Hess Company, Inc 1314 Spring Garden Ave. |
Pittsburgh |
PA |
Drever Co |
Bethagres |
PA |
Curtis Publishing Co |
Sharon Hill |
PA |
Falcon Equipment Co |
New Brighton |
PA |
Metropolitan Edison Company |
West Reading |
PA |
Globe Plastic Co |
Croydon |
PA |
Armstrong Cont Supply |
Lancaster |
PA |
Jacoby Heating Inc |
Harrisburg |
PA |
E.s. Atkinson |
Erie |
PA |
Lone Star Industries Inc |
Nazareth |
PA |
K L Refractories |
Erie |
PA |
Neals Welding And Fabricat |
Steelton |
PA |
Palladinon |
Pottstown |
PA |
Perry Ship Builders Compa |
Erie |
PA |
Sun Oil |
Marcus Hook |
PA |
Plumb Fayette H Inc |
Philadelphia |
PA |
Wheatland Tube |
Wheatland |
PA |
South Pittsburgh Water Wo |
Pittsburgh |
PA |
Mormacscan |
Chester |
PA |
Tri-state Metals Company |
Quakertown |
PA |
Vega (t-ak-286) |
Chester |
PA |
West Penn Power Co |
New Eagle |
PA |
American Cyanamid Company |
Bridgeville |
PA |
Greenwich Collieries |
Barnesboro |
PA |
Barrett Chemical Company |
Philadelphia |
PA |
Cressona Aluminum |
Cressona |
PA |
Budd Company |
Bridgeport |
PA |
U.s. Steel |
Fairless Hills |
PA |
Decker Associates Inc. |
Orefield |
PA |
Cartech Corp |
Reading |
PA |
General American Transport Corporation |
Sharon |
PA |
Union Specialties |
Verona |
PA |
Hiram Swanks Sons |
Johnstown |
PA |
Air Master |
Philadelphia |
PA |
Jp Austin Associated Inc |
Pittsburgh |
PA |
Capital Products |
Harrisburg |
PA |
Philadelphia Asbestos Cork |
Philadelphia |
PA |
Erie Marine |
Erie |
PA |
Pittsburgh Coal Corporation |
Imperial |
PA |
Harcast Corporation |
Glenolden |
PA |
Uss Russell Mill |
Rochester |
PA |
Mather Co. |
Toledo |
PA |
Us Steel |
Morrisville |
PA |
Pittron |
Glassport |
PA |
Westinghouse Atomic Labratory |
West Mifflin |
PA |
St Joe Minerals |
Josephtown |
PA |
Oneida Mining Company |
Armagh - Bush Valley |
PA |
Washington Tool |
Washington |
PA |
Park City Mall |
Lancaster |
PA |
Alan Wood Steel Riner Road |
Conshohocken |
PA |
Carborundum |
Latrobe |
PA |
Us Steel Homestead Works |
Homestead |
PA |
Greengate Mall |
Greensburg |
PA |
West Pennsylvania Power Company |
Monongahela |
PA |
Ametek |
Sellersville |
PA |
Nicholson File Company Red Lion Decatur Roads |
Philadelphia |
PA |
National Can Corporation |
Bristol |
PA |
Inland Products |
Pittsburg |
PA |
Union Railroad |
Braddock |
PA |
Us Steel Sinter Plant #1 |
Saxonburg |
PA |
British Petroleum Oil Sinclair Refinery |
Trainer |
PA |
Pennsylvania Power Light Montour Station |
Washingtonville |
PA |
Owens Corning Fiberglas |
Ephrata |
PA |
Armstrong Cork Company, Storage Blending Tank |
Lancaster |
PA |
A. Hirsch Air Company |
Philadelphia |
PA |
Eureka Stone Quarry, Incorporated |
Bucks County |
PA |
Allentown State Hospital |
Allentown |
PA |
Overbrook Steam Heat Company, Woodbine Ave. Uplant Way |
Philadelphia |
PA |
American Viscose Plant |
Lewistown |
PA |
Philadelphia Electric Company Station C |
Philadelphia |
PA |
Babcock Wilcox |
Wallace Run |
PA |
U.s. Steel, Clairton Works, Power House #2 |
Clairton |
PA |
Berillium Corporation |
Temple |
PA |
Medusa Portland Cement Company |
West York |
PA |
Bryn Mawr Hospital |
Bryn Mawr |
PA |
Jones Laughlin Steel |
Aliquippa |
PA |
Childrens Hospital |
Pittsburgh |
PA |
West Penn Powerhouse |
Milesburg |
PA |
Delaware Valley Drywall |
Croydon |
PA |
Gaf (ruberoid) |
Fullerton |
PA |
Fidelity Bank Building |
Philadelphia |
PA |
Uss Chemicals |
Neville Island |
PA |
Goodyear |
Pittsburgh |
PA |
Dahlgren |
Philadelphia |
PA |
Holiday Inn |
Philadelphia |
PA |
Minneapolis |
Philadelphia |
PA |
John David Company |
Philadelphia |
PA |
#4 Shaft |
Dunmore |
PA |
Lavino Shipping Company |
Philadelphia |
PA |
A. French Spring Company |
Pittsburgh |
PA |
Martins Creek Powerhouse |
Martins Creek |
PA |
Academy Of The New Church |
Bryn Athyn |
PA |
Mother Of Divine Grace |
Philadelphia |
PA |
Albright Coal Company |
Llewellyn |
PA |
Norristown State Hospital |
Norristown |
PA |
Allegheny By-product Coke Company |
Glassport |
PA |
Penn Jersey Boiler Company |
Pennsauken |
PA |
Allegheny Furnace |
Altoona |
PA |
Philco |
Blue Bell |
PA |
Allentown Hospital |
Allentown |
PA |
Quaker State Machine Company |
Willow Grove |
PA |
Atlas Cement Company |
Northampton |
PA |
Rohm Haas |
Philadelphia |
PA |
American Pipe Manufacturing Company |
Philadelphia |
PA |
Solesbury Elementary School |
Solesbury |
PA |
American Steel Hoop Company |
Allegheny |
PA |
Struthers And Wells |
Titusville |
PA |
American Coke Company |
Pittsburgh |
PA |
Us Steel |
Shiremanstown |
PA |
American Rolling Mill Company |
Butler |
PA |
Western Electric Company Allentown Works |
Allentown |
PA |
American Type Founders Company |
Philadelphia |
PA |
Philadelphia School District |
Philadelphia |
PA |
Appleton Papers, Incorporated |
Roaring Springs |
PA |
Jones And Laughlin Steel |
Alquippa |
PA |
Armstrong Cork Company |
Pittsburgh |
PA |
Insuldeck Corp |
Bath |
PA |
Atlas Portland Cement Company |
Northampton |
PA |
Magazine Lumber Co |
Cardale |
PA |
Baldt Anchor, Chain Forge Company |
Chester |
PA |
Cash And Carry Lumber Cco |
Derry |
PA |
Barrett Division Allied Chemical And Dye Corporation |
Philadelphia |
PA |
Gnex Inc |
Erie |
PA |
Beaver Coal And Coke Company |
Wampum |
PA |
Till Distributing |
Erie |
PA |
Bellefield Hotel |
Pittsburgh |
PA |
Armstrong Contracting Supply Corporation |
Harrisburg |
PA |
Berwind White Coal Mining Company |
Scalp Level |
PA |
Leechburg Supply Co |
Leechburg |
PA |
Bethlehem Steel Corporation, Bethlehem Lukens Plate Products |
Coatesville |
PA |
Industrial Gasket Shim Co |
Meadow Lands |
PA |
Bissell And Company |
Pittsburgh |
PA |
Argyl Manufacturing Co |
Pen Argyl |
PA |
Bollinger Brothers |
Pittsburgh |
PA |
The Philip Carey Mfg Corp |
Philadelphia |
PA |
Bradshaw And Company |
Pittsburgh |
PA |
University Of Pittsburgh |
Pittsburgh |
PA |
Brown And Company, Incorporated |
Pittsburgh |
PA |
Ivor J Lee Co |
Sharon |
PA |
Buffalo Susquehanna Coal Coke Company |
Big Run |
PA |
O C Cluss Lumber Co |
Uniontown |
PA |
C.c. Harrison Building |
Philadelphia |
PA |
Aero Supply Manufacturing |
Corry |
PA |
Cambria Steel Company |
Johnston |
PA |
American Locomotive Co. |
Latrobe |
PA |
Carlisle Gas And Water Company |
Carlisle |
PA |
Borough Of Grove City – Sewage Treatment Plant |
Grove City |
PA |
Carnegie Steel Company |
Munhall |
PA |
Cochrane Dv Crane Corporation |
King Of Prussia |
PA |
Carnegie Illinois Steel Corporation |
Homestead |
PA |
Dowty Corporation |
Zelienople |
PA |
Central Railroad Of New Jersey |
Ashley |
PA |
General Tire Rubber Company |
Jeanette |
PA |
Charmin Paper Products Company |
Mehoopany |
PA |
Hydro-blast Corporation |
Waynesboro |
PA |
Cheswick Power Company |
Springdale |
PA |
Koppers Company (air Reduction) |
Johnstown |
PA |
City Electric Light Company |
Allegheny City |
PA |
Mackintosh-hemphill Company |
Pittsburgh |
PA |
Climax Molybdenum Company |
Langeloth |
PA |
Okonite Co. (hazard Wire Rope) |
Wilkes Barrre |
PA |
Colonial Collieries Company |
Mt Carmel |
PA |
Pennsylvania Smelting Refining Co. |
Philadelphia |
PA |
Commons At Fallsington |
Morrisville |
PA |
Price Battery Corp. |
Hamburg |
PA |
Consolidated Steel Wire Company |
Beaver Falls |
PA |
South Pittsburgh Water Company |
Pittsburgh |
PA |
Cowanshannock Coal And Coke Company |
Punxsutawney |
PA |
U.s. Steel Corporation |
Vandegrift |
PA |
Crescent Works |
Pittsburgh |
PA |
Westinghouse Elec. Corp. |
Essington |
PA |
Curtis Publishing Company |
Philadelphia |
PA |
Air Products Co |
Allentown |
PA |
Dager And Cox, Eureka Paper Mills |
Bridgeport |
PA |
Philadelphia Naval Shipyard |
Uss Los Angeles |
PA |
Delaware And Hudson Company |
Plymouth Junction |
PA |
Bethlehem Mines Corporation Hanover Quarry |
Hanover |
PA |
Delaware Mine |
Hudson |
PA |
Dyna-vac Power Cleaning Of Buxmont |
Doylestown |
PA |
Dexter Portland Cement Company |
Siegfried |
PA |
Keystone Portland Cement Company |
Bath |
PA |
Dolier Engineering Company |
Philadelphia |
PA |
Moss-rose Manufacturing Company |
Philadelphia |
PA |
Dravo Corporation |
Philadelphia |
PA |
Reading Metals Refining Co. |
Reading |
PA |
Duquesne Forge Company |
Pittsburgh |
PA |
United States Steel Corporation |
Duquesne |
PA |
E. G. Brooke Iron Company |
Birdsboro |
PA |
Wheeling-pittsburg Steel Corporation |
Allenport |
PA |
East Broad Top Railroad Company |
Orbisonia |
PA |
E Thompson Works |
Braddock |
PA |
Ebensburg Light, Heat And Power Company |
Ebensburg |
PA |
Marlsbary Mfg Co |
Uniontown |
PA |
Edison Electric Illuminating Company |
Altoona |
PA |
Armco Steel |
Sharon |
PA |
Eleventh Ward School |
Allegheny |
PA |
B. R. P. Roundhouse |
Puxsatawney |
PA |
Empire Building |
Pittsburgh |
PA |
Folwell Bros. John Bromley Sons |
Philadelphia |
PA |
Erie Lighting Company |
Erie |
PA |
Hog Island Shipyard |
Philadelphia |
PA |
Everts And Overdeer, Incorporated |
Lancaster |
PA |
Maple Avenue Hospital |
Du Bois |
PA |
F.c. Roberts Company Engineers |
Philadelphia |
PA |
Pennsylvania Railroad |
Balairsville |
PA |
Fayette Manufacturing Company |
Chester |
PA |
Pressed Steel Car Co |
Pittsburgh |
PA |
Firth Sterling, Incorporated |
Mckeesport |
PA |
Susquehanna Silk Mills |
Huntington |
PA |
Ft. Martin Power Station |
Point Marion |
PA |
Westinghouse |
Lester |
PA |
Frankfurt Plant |
Philadelphia |
PA |
Western Pennsylvania Power Co |
|
PA |
G.w. Johnson Company |
New Castle |
PA |
Beckwith Machinery |
Murraysville |
PA |
General Electric Company |
Erie |
PA |
General Electric Company- |
Erie |
PA |
George H. Walbridge Lackawanna Light Company |
Scranton |
PA |
Pennsylvania Electric Co. |
Homer City |
PA |
Gipsey Grove Colliery |
Dunmore |
PA |
Westinghouse Bettis Atomic |
West Mifflin |
PA |
Glen Summit |
Spring Siding |
PA |
Sitkin Metal Trading, Inc. |
Lewistown |
PA |
Greensburg-connellsville Coal Coke Company |
Burgettstown |
PA |
Hill Hall, Wernersville State Hospital |
Wernersville |
PA |
H.f. Watson |
Erie |
PA |
46th Haverford School |
Philadelphia |
PA |
H. Westhoff- Florist |
Hoffman Sta. |
PA |
Arco Chemical |
Newtown |
PA |
H.c. Frick Coke Company |
York Run |
PA |
Board Of Education Buildings |
Philadelphia |
PA |
Hampton Mines |
Scranton |
PA |
Children`s Reception Welfare |
Philadelphia |
PA |
Harrison, Havemeyer Company |
Philadelphia |
PA |
Danville Powerhouse |
Washingtonville |
PA |
Heeren Brothers And Company |
Pittsburgh |
PA |
Exide Battery Company |
Philadelphia |
PA |
Herris Island |
Pittsburgh |
PA |
General Electric Company- Warehouse |
Philadelphia |
PA |
Hollenbach Colliery #2 |
Wilkes Barre |
PA |
Homer City Powerhouse |
Homer City |
PA |
Honeywell, Incorporated |
Emlenton |
PA |
Jones Junior High School- Ann Memphis Streets |
Philadelphia |
PA |
Hudson Coal Company |
Scranton |
PA |
Leidy School |
Philadelphia |
PA |
Illinois Zinc Company |
Pittsburgh |
PA |
Morrell Felin Meat Packers |
Philadelphia |
PA |
Ingram Richardson Company |
Beaver Falls |
PA |
Park City Shopping Center |
Park City |
PA |
Irwin Works |
Irwin |
PA |
Philadelphia Aquatic Club |
Philadelphia |
PA |
J.h. Wilcox |
Chester |
PA |
Pickett Middle School Wayne Chelten |
Philadelphia |
PA |
J.f: Betz And Son |
Philadelphia |
PA |
Sacred Heart Hospital |
Norristown |
PA |
James Mckay Company |
Mckees Rocks |
PA |
Smith Kline French |
Swedesboro |
PA |
Jawood Lukens |
East Conshohocken |
PA |
Temple University Hospital |
Philadelphia |
PA |
Jno. F. Wilcox |
Pittsburgh |
PA |
University Of Pennsylvania Law School |
Philadelphia |
PA |
John Wanamaker Department Store |
Philadelphia |
PA |
Us Army Reserve Center |
Reading |
PA |
Jones And Laughlin Steel Corporation |
Eliza |
PA |
Northeast Water Pollution Control Plant |
Philadelphia |
PA |
Keasbey And Mattison Company |
Ambler |
PA |
A M Byers Company |
Ambridge |
PA |
Keystone Coal And Coke Company |
Dundale |
PA |
Aliquippa Works Station 27 Nm Pipe Shop |
Aliquippa |
PA |
Kolnile Brewing Company |
Philadelphia |
PA |
Allegheny Plastics Company |
Coraopolis |
PA |
Labor Products And Ice Company |
Brackenridge |
PA |
Argyl Mfg Co |
Pen Argyl |
PA |
Lancaster Cork Works |
Lancaster |
PA |
Atlantic Refining Co Central Warehouse-east Side B O Delivery Track 85 |
Philadelphia |
PA |
Lawrence Cement Company Of Pennsylvania |
Siegfried, Northampton |
PA |
Atlantic Refining Co Rt. Breeze Refinery |
Philadelphia |
PA |
Lehigh And Wilkes Barre Coal Company |
Audeuried |
PA |
Badwell Co. |
Harrisburg |
PA |
Lehigh Coal And Navagation Company |
Philadelphia |
PA |
Bethlehem Steel Company #4 Shop/dept. Lehigh Division |
Bethlehem |
PA |
Lehigh Navigation Electric Company |
Hanto |
PA |
Bethlehem Steel Co Pipe Shop Department Saucon Division |
Bethlehem |
PA |
Lehigh Valley Coal Company, Prospect Colliery |
Wilkes Barre |
PA |
Caterpillar Tractor Company |
East York |
PA |
Lehigh And Wilkes Barre Coal Company |
Notingham Colliery |
PA |
Clairton Works Methyl Naptheline Division |
Clairton |
PA |
Liberty Market Company |
Pittsburgh |
PA |
Pittsburgh Consolidation Coal Company Montour 10 Mine Research Development Division Pilot Pl |
Library |
PA |
Link Belt Engineering Company, By Dodge And Day |
Nicetown, Philadelphia |
PA |
Duquesne Brewing Co. Of Pittsburgh New Bottling House |
Pittsburgh |
PA |
Lucent Technologies, Incorporated |
Breinigsville |
PA |
Equitable Life Assurance Society Gateway Center Basement Stockroom 1 |
Pittsburgh |
PA |
M. And W.h. Nixon, Paper Company |
Philadelphia |
PA |
Fort Cherry School |
Mcdonald |
PA |
Malthby Colliery |
Wyoming |
PA |
Gulf Oil Corp Cooling Water Pump House #491 |
Girard Point |
PA |
Martin And William H. Nixon Paper Company |
Peneoyd |
PA |
Gulf Research Development |
Pittsburgh |
PA |
Maxwell Colliery |
Ashley |
PA |
Hazelwood Plt Batt #2 |
Pittsburgh |
PA |
Mcconway And Forley Company |
Pittsburgh |
PA |
Jsta. #30 S. S. Boiler Hse. |
Pittsburgh |
PA |
Mclean Newhall And Borie |
Philadelphia |
PA |
Koppers Company Chemical Division Penacol Plant |
Petrolia |
PA |
Merck Company, Inc. |
West Point |
PA |
Koppers Company Plastics Division |
Monaca |
PA |
Midvale Company |
Philadelphia |
PA |
Laco Applicators, Inc. Waren State Boiler House |
Warren |
PA |
Midwest Generation |
Homer City |
PA |
Lester Industrial Park |
Lester |
PA |
Mitchell, Fletcher And Company |
Philadelphia |
PA |
Marietta Metal Products Corp. |
Philadelphia |
PA |
Monongahela River Consolidated Coal And Coke Company |
Pittsburgh |
PA |
Mesta Machine Company |
Homestead |
PA |
Mount Alto Santarium |
Mont Alto Park |
PA |
Milliken Hospital Boiler Room |
Pottsville |
PA |
Mutual Chemical Division Of Allied Chemical And Dye |
Philadelphia |
PA |
National Electric Products Company Manufacturing Facility |
Ambridge |
PA |
National Forge And Ordnance Company |
Irvine |
PA |
New Jr High School |
Troy |
PA |
National Tube Company |
Chester |
PA |
New York State Natural Gas Sabinsville Compressor Station |
Sabinsville |
PA |
New Castle And Lowell Railway Company |
Edinburg |
PA |
Parkway Manor Elem School |
Lehigh County |
PA |
New York Shipbuilding Company |
Philadelphia |
PA |
Pennsylvania Industrial Chemical Co Clairton Plant |
Clairton |
PA |
Noah Barlow |
Philadelphia |
PA |
Pennsylvania Power Light Co Montour No 1 Power Plant |
Washingtonville |
PA |
Northwestern Pennsylvania Railway Company |
Meadville |
PA |
Pennzoil Co Plant 1 |
Rouseville |
PA |
Number 9 Breaker |
Pittston |
PA |
Pittsburgh Activated Carbon Co Dept 714 |
Neville Island |
PA |
Old Forge Collieries |
Scranton |
PA |
Power Atomic Power Station |
Shippingport |
PA |
Onderdonk Heating And Ventilating Company |
Philadelphia |
PA |
R. C. A. Victor Division Bldgs. 2, 2a 2b |
Lancaster |
PA |
P.j. Ritter Company |
Philadelphia |
PA |
Rubel |
Erie |
PA |
Park Works |
Pittsburgh |
PA |
Skin Cancer Clinc |
Mckees Rocks |
PA |
Peach Bottom Nuclear Plant |
Peach Bottom |
PA |
Standard Oil Tank Hull 601 |
Philadelphia |
PA |
Penn Public Service Company |
Johnstown |
PA |
Susquehanna University Womens Mens Dormitories |
Selinsgrove |
PA |
Pennsylvania Institute For Instruction Of Blind |
Overbrook |
PA |
U. S. Steel Corporation |
Ambridge |
PA |
Pennsylvania Water Company |
Wilkinsburg |
PA |
U. S. Steel Corporation Carrie Furnace |
Rankin |
PA |
Pennsylvania Coal Company |
Dunmon |
PA |
U. S. Steel Corporation Duquesne Works Steel Works |
Duquesne |
PA |
Pennsylvania Power And Light Company |
Hauto |
PA |
U. S. Steel Corporation National Works |
Mckeesport |
PA |
Pennsylvania Railroad Company |
Pittsburgh |
PA |
Uniontown Senior High School |
Uniontown |
PA |
Pennsylvania Steel Company, Lebanon Furnace |
Lebanon |
PA |
Veterans Administration Hospital |
Pittsburgh |
PA |
Peoples Ice And Cold Storage Company |
Mckeesport |
PA |
West Penn Power Co |
Reesedale |
PA |
Peter F. Loftus |
Pittsburgh |
PA |
Westerly Parkway School |
State College |
PA |
Philadelphiadelphia And Reading Coal And Iron Company |
Schuykill Haven |
PA |
Westinghouse Electric Company Atomic Power Division Forest Hills |
West Mifflin |
PA |
Philadelphia Company |
Canonsburg |
PA |
Whitehall Cement Co |
Cementon |
PA |
Philadelphia Hospital |
Philadelphia |
PA |
Achenbach Butler, Inc. |
Philadelphia |
PA |
Phoenix Cement Company |
Nazareth |
PA |
International Paper Co. |
Lock Haven |
PA |
Pittsburgh Mckeesport And Westmoreland Railway Company |
Mckeesport |
PA |
Pittsburg Plate Glass Company |
Pittsburgh |
PA |
Pittsburgh Buffalo Company |
Pittsburgh |
PA |
Pittsburgh Mechanical Systems Incorporated |
Pittsburgh |
PA |
Pittsburgh Steel Company |
Alicia |
PA |
Pottstown Hospital |
Pottstown |
PA |
Proctor Ellison Company |
Elkland |
PA |
Quakertown Tractor Company |
Quakertown |
PA |
Railway Spring And Manufacturing Company |
Pittsburgh |
PA |
Reed Electric Company |
Philadelphia |
PA |
Richard Finishing Company, Incorporated |
Jerwyn |
PA |
Robesonia Iron Company |
Robesonia |
PA |
Rockpoint Sand Company Of Pittsburgh |
West Ellwood Junction |
PA |
S. Faith Company |
Philadelphia |
PA |
Savage Arms Corporation |
Sharon |
PA |
Schutte And Koerting Company |
Philadelphia |
PA |
Scranton Bolt And Nut Company |
Scranton |
PA |
Semet-solvay Company |
Dunbar |
PA |
Sharon Steel Hoop Company |
Pittsburgh |
PA |
Shenango Valley Steel Company |
New Castle |
PA |
Simpson And Watkins |
Duryza |
PA |
Sonman Shaft Coal Company |
Portage |
PA |
Southmark Mills Company |
Philadelphia |
PA |
American Car And Foundry Company |
Milton |
PA |
Sprenger Brewing Company |
Lancaster |
PA |
Bethlehem Steel |
Steelton |
PA |
St. Nicholas Building |
Pittsburgh |
PA |
Braeburn Alloy Steel Company |
Braeburn |
PA |
Standard Steel Works Company |
Philadelphia |
PA |
Chester High School |
Chester |
PA |
Steel Car Forge Company |
Ellwood City |
PA |
Delaware Alloy Forge |
Philadelphia |
PA |
Sun Company, Incorporated, Refinery |
Marcus Hook |
PA |
E.j. Lavino Company |
Plymouth Meeting |
PA |
Susquehanna Coal Company |
Wilkes Barre |
PA |
Frank Romano |
Philadelphia |
PA |
Taws And Hartman |
Philadelphia |
PA |
Glen Gery Shale Brick Corporation |
Ephrata |
PA |
Thomas Dolan And Company |
Philadelphia |
PA |
Hubbard Tool Division |
Pittsburgh |
PA |
Tioga Coal Company |
Wilkes Barre |
PA |
John Tack Sons |
Butler |
PA |
Turner And Serrel |
Philadelphia |
PA |
Lukens Steel Co |
Coatsville |
PA |
Union League Club |
Philadelphia |
PA |
Mc Conway Turley Corp |
Pittsburgh |
PA |
United Gas Improvement Company |
Wayne |
PA |
Mulligan Harold R |
Philadelphia |
PA |
United States Seamless Tube Company |
Christy Park |
PA |
Norris Smelting Refining |
Swedeland |
PA |
Us Army Supply Base |
Philadelphia |
PA |
Pennsylvania Railroad Co |
Philadelphia |
PA |
Valley Mould And Iron Company |
Sharpsville |
PA |
Pittsburgh Metal Process |
Pittsburgh |
PA |
Vinton Colliery Company |
Vintondale |
PA |
Reading Railroad Co |
Philadelphia |
PA |
W. Glyde Wilkins, C.e. |
Pittsburgh |
PA |
Schutte Doarting Co |
Cornwall Heights |
PA |
W.p.o. Railroad |
Philadelphia |
PA |
Sun Shipbuilding Dry Dock Co |
Chester |
PA |
Washington Electric Light And Power Company |
Washington |
PA |
Tru Knit Industries |
Philadelphia |
PA |
Weeks Brothers |
Pittsburgh |
PA |
United States Steel Corporation |
Ambridge |
PA |
West Penn Power Company |
Springdale |
PA |
Victor Chemical Works |
Morrisville |
PA |
Western Penitentiary Of Pennsylvania |
Allegheny |
PA |
Wood Mrs Josephine Green |
Conshohocken |
PA |
Westinghouse Electric Company |
Pittsburgh |
PA |
Allen Products Company |
Allentown |
PA |
Westmoreland Coal Company |
Yukon |
PA |
Baldwin-lima-hamilton Corporation |
Eddystone |
PA |
Widener Building |
Philadelphia |
PA |
Bornot, Incorporated |
Philadelphia |
PA |
William Weightman |
Philadelphia |
PA |
Defense Supply Agency |
Philadelphia |
PA |
Witco Corporation |
Petrolia |
PA |
Fibrous Glass Products |
Mountain Top |
PA |
William H. Taylor And Company |
Allentown |
PA |
J.b. Swayne Son |
Kennett Square |
PA |
Wyoming Valley Electric Light, Heat Power Company |
Wilkes Barre |
PA |
Lasko Metal Products, Incorporated |
Westchester |
PA |
United States Steel |
Duquesne |
PA |
Miduale-heppenstahl |
Philadelphia |
PA |
Phillip Carey |
Plymouth |
PA |
Philadelphia Dry Yeast |
Philadelphia |
PA |
Pennsylvania Steel Mill |
Chester |
PA |
Robert Wooler Company |
Dresher |
PA |
Greenville |
Glenwood |
PA |
S.s. Mobil Aero |
Chester |
PA |
Pennsylvania Railroad |
Paoli |
PA |
St. Marys Laundry |
Ardmore |
PA |
Philadelphia Electric Company, Cromble Corporation |
Phoenixville |
PA |
Union Paving Company |
Philadelphia |
PA |
Philadelphia Electric Company |
Schuykill |
PA |
Wildman Jacquard Company |
Norristown |
PA |
National Tube Company (division National Works) |
Mckeesport |
PA |
Marquette Cement |
Pittsburgh |
PA |
Conrail (consiladated Railroad) |
Altoona |
PA |
Pennzoil |
Rouseville |
PA |
Sui Gas Purification Plant |
Karachi |
PA |
Southern Nitrogen Company |
Port Wentworth |
PA |
Shippingport Nuclear Power Station |
Shippingport |
PA |
Allen Sherman Hoff Co |
Wynnewood |
PA |
Adams Apple Products |
Bendersville |
PA |
Alpha Portland Cement Co |
Easton |
PA |
Sonoco Products Co (a/k/a Downingtown Paper) |
Downingtown |
PA |
Venezuela Gulf Refining C |
Pittsburgh |
PA |
Greencastle Packing Co. |
Greencastle |
PA |
C F Refractories |
Port Kennedy |
PA |
Penreco/pennsylvania Refining Co |
Karns City |
PA |
Westinghouse Electric Corp |
Trafford |
PA |
Pennsylvania Power Light Co Martins |
Martins Creek |
PA |
Aluminum Company Of America |
Pittsburgh |
PA |
United Engineering Foundry Company |
New Castle |
PA |
Keystone Portland Cement |
Philadelphia |
PA |
Fort Miffin Naval Ammunition Depot, Central Heating Plant |
Philadelphia |
PA |
Bickley Furnances Inc |
Philadelphia |
PA |
Reading Co |
Philadelphia |
PA |
Clarmont Engineering |
Philadelphia |
PA |
Pennzoil Company |
Pittsburgh |
PA |
Duer Spring And Mfg Co Div |
Mckees Rocks |
PA |
Pennsylvania Electric Company Shawville Station |
Shawville |
PA |
Fibrous Glass Co |
Carlisile |
PA |
Eberle Tanning Company |
Westfield |
PA |
Globe Ticket Co |
Philadelphia |
PA |
Armstrong Cont Supply |
Washington |
PA |
Jessop Steel Co |
Washington |
PA |
East Penn Refractories |
Reading |
PA |
Manor Brick Crafters Inc |
New Oxford |
PA |
Kawecki Berylco |
Hazelton |
PA |
Neals Welding And Fabricating |
Steelton |
PA |
Penn Power Light Montour Station |
Washingtonville |
PA |
Philadelphia Asbestos Cor |
Philadelphia |
PA |
Superior Combustion Industries |
Emmaus |
PA |
Porter H K |
Philadelphia |
PA |
Bayamon |
Chester |
PA |
Specialty Precision Wire |
Mt Carmel |
PA |
Mormactrade |
Chester |
PA |
U G I Corp |
Hunlock Creek |
PA |
Fort Mifflin |
Philadelphia |
PA |
Westinghouse Elec Corp |
Trafford |
PA |
American Machine And Foundry Co. |
York |
PA |
Oneida Mining |
Homer City |
PA |
Beaunit Fibers |
Elizabethon |
PA |
Edgewater Corp. |
Pittsburgh |
PA |
Burnham Boiler Company |
Lancaster |
PA |
U.s. Steel Clairton Works |
Clairton |
PA |
Dravo Corp. |
Neville Island |
PA |
Armco |
Ambridge |
PA |
General Electric Company |
Philadelphia |
PA |
Westinghouse Air |
Wilmerding |
PA |
Hiram Swanks Sons |
Irovone |
PA |
Alleghany Ludlum Steel |
Clairton |
PA |
Jp Austin Associated Inc |
Homestead |
PA |
Capital Products |
Mechanicsburg |
PA |
Philadelphia Asbestos Corp. |
Philadelphia |
PA |
Exotic Metals |
Ridgway |
PA |
Pittsburgh Coal Corporation |
Allegheny County |
PA |
Hoffman Bros |
Punxsutawney |
PA |
Rust Engineering Company |
Pittsburgh |
PA |
Mcconway-torley |
Pittsburgh |
PA |
Van Brunt Company |
Philadelphia |
PA |
Pitts. Comm. Heating |
Pittsburgh |
PA |
Westinghouse Electric Company |
Churchill |
PA |
St Joe Smelting |
Monaca |
PA |
Owens Corning Fiberglass Corporation- |
Berwyn |
PA |
Western Penn |
Beaver City |
PA |
Pennsylvania Power Light Co. |
York Haven |
PA |
Coplay Cement Manufacturing Company |
Coplay |
PA |
William H. Ottemiller Co. |
York |
PA |
Armstrong Cork Company |
Lancaster |
PA |
National Vulcanized Fibre |
Kennett Square |
PA |
Us Steel Headquarter Building Research Center |
Monroeville |
PA |
Ge |
Erie |
PA |
Overbrook Steam Heat Company Woodbine Avenue Uplant Way |
Philadelphia |
PA |
Ppg Industries- |
Creighton |
PA |
Aiken Medical Building |
Pittsburgh |
PA |
Us Steel, Homestead Works |
Pittsburgh |
PA |
Allied Services Handicapped |
Scranton |
PA |
Bruce Mansfield Power Plant |
Shippingport |
PA |
Pennsylvania Power Light Montour Station Unit #1 |
Washingtonville |
PA |
Pittsburgh Crucible Steel |
Midland |
PA |
Armstrong Cork Company, Tanks Hood |
Pittsburgh |
PA |
Abington High School |
Abington |
PA |
Gaf Corporation, 1139 Lehigh Ave. |
Fullerton |
PA |
Allenwood Steel |
Conshohocken |
PA |
Pennsylvania Electric Company Seward Generating Station |
Seward |
PA |
Amjohn Incorporated |
Carnegie |
PA |
Philadelphia Electric Company Richmond Generating Station |
Philadelphia |
PA |
Babcock Wilcox, Tubular Products Division |
Koppel |
PA |
U.s. Steel, Headquarter Building, Research Center |
Monroeville |
PA |
Berwick Forge Fabricating |
Berwick |
PA |
Allied Chemical Corporation |
Bridesburg |
PA |
Bundy Tubing |
Coaldale |
PA |
Lehigh Portland Cement Fogelsville Plant |
Allentown |
PA |
Clarion Steel Works |
Pittsburgh |
PA |
Atlantic Refining |
Philadelphia |
PA |
Department Of Motor Vehicles Building |
Harrisburg |
PA |
Green Tweed |
North Wales |
PA |
Finnaren Haley Paint |
Conshohocken |
PA |
Uss Division Of Usx Corporation [ship] |
Clairton |
PA |
Goodyear |
Grove City |
PA |
Darby |
Philadelphia |
PA |
Holland Furnace |
Delaware County |
PA |
Navasota |
Chester |
PA |
Johns Manville |
Pittsburgh |
PA |
#5 Breaker |
Dunmore |
PA |
Lebanon City County Building |
Lebanon |
PA |
A. Garrison Foundry Company |
Pittsburgh |
PA |
Max Brockton Textile Company |
Philadelphia |
PA |
Ace Motor Company |
Philadelphia |
PA |
Nabisco |
Philadelphia |
PA |
Alcania Tin Plate Company |
Avonmore |
PA |
Oil City Glass Company |
Oil City |
PA |
Allegheny By-products Company |
Glassport |
PA |
Penn Optical |
Reading |
PA |
Allegheny Gas Company |
Allegheny City |
PA |
Phoenixville Steel |
Phoenixville |
PA |
Allentown Portland Cement Company |
Allentown |
PA |
R.c.a. |
Lancaster |
PA |
Altoona Car Shops |
Altoona |
PA |
Skf Industries |
Philadelphia |
PA |
American Sheet And Tin Plate Company |
Pittsburgh |
PA |
South Heights Power Station |
Wireton |
PA |
American Austin Car Company |
Butler |
PA |
Summit Park Apartments |
Philadelphia |
PA |
American Coke Company |
Lambert |
PA |
Us Steel |
Hillsville |
PA |
American S. W. Company |
Allegheny |
PA |
Western Metal Bed Company |
Philadelphia |
PA |
American Viscose Corporation |
Marcus Hook |
PA |
Barrett Chemical |
Philadelphia |
PA |
Applied Energy Services Corporation |
Monaca |
PA |
Pennsylvania Perlite Corporation Manufacturing Plant |
Bethlehem |
PA |
Armstrong Cork Company, Linoleum Division |
Lancaster |
PA |
Tri Cash Carry Lumber Co |
Beaver Falls |
PA |
Audenried #4 Coll |
Audenried |
PA |
Anchor Supply Company |
Carnegie |
PA |
Baldwin Locomotive Works |
Philadelphia |
PA |
Neshaminy Nursing |
Doylestown |
PA |
Barrett Company |
Philadelphia |
PA |
Gram Asbestos Co |
Erie |
PA |
Beaver County Geriatric Center |
Beaver |
PA |
Trost Sheet Metal Co |
Erie |
PA |
Bellefonte Electric Company |
Bellefonte |
PA |
Flack Bros Inc |
Harrisburg |
PA |
Berwind White Coal Mining Company |
Horatio |
PA |
Thermal Engineering Inc |
Lehigh Valley |
PA |
Bethlehem Silk Company |
Bethlehem |
PA |
Z L Lumber Co |
Mercer |
PA |
Knouse Foods Cooperative, Incorporated |
Orrtanna |
PA |
C D Battery |
Pennsburg |
PA |
Bon Secours Holy Family Hospital |
Altoona |
PA |
Universal Insualtion Company |
Philadelphia |
PA |
Braeburn Alloy Steel Corporation |
Braeburn |
PA |
Mechanical Insulation Co |
Plymouth Meeting |
PA |
Brown Brothers Company |
Philadelphia |
PA |
Medal Distributing Co |
Sharon |
PA |
Buffalo Hardware Stove Company |
Freemans Run |
PA |
Baldwin-ehert-hill Inc |
Valley Forge |
PA |
C.h. Maslin And Sons |
Philadelphia |
PA |
Air Production Sales |
Johnstown |
PA |
Cambria Steel Company |
Johnstown |
PA |
American Water Works Electric Company |
Pittsburgh |
PA |
Carnegie Illinois Steel Corporation |
Etna |
PA |
Bradford Supply Company |
Bradford |
PA |
Carnegie Steel Company |
New Castle |
PA |
Columbia Water Company |
Columbia |
PA |
Carnegie Illinois Steel Corporation |
Allegheny City |
PA |
Dresser Manufacturing Division |
Bradford |
PA |
Central Works |
Lebanon |
PA |
Geo. F. Moilers Co. |
Gettysburg |
PA |
Chartiers Valley High School |
Pittsburgh |
PA |
Hydro-blast Corporation |
Franklin |
PA |
Chicago Pneumatic Tool Company |
Pittsburgh |
PA |
Lee Rubber Tire Company |
Conshohocken |
PA |
City Mill |
Philadelphia |
PA |
Mclanahan Corp. |
Hollidaysburg |
PA |
Clinton Iron And Steel Company |
Pittsburgh |
PA |
Olmstead Air Force Base |
Middletown |
PA |
Colonial Iron Company |
Riddlesburg |
PA |
Pennzoil Company |
Rouseville |
PA |
Commonwealth Title Insurance And Trust Company |
Philadelphia |
PA |
Pullman Standard Car Manufacturing Company |
Butler |
PA |
Consolidated Steel Wire Company |
Rankin |
PA |
Southern Natural Gas Company |
Pittsburgh |
PA |
Cowanshannock Coal And Coke Company |
Yatesboro |
PA |
U.s. Steel Corporation |
Pittsburgh |
PA |
Croft And Allen Company |
Philadelphia |
PA |
Westinghouse Electric Manufacturing Co. |
Philadelphia |
PA |
Cytemp Specialty Steel |
Titusville |
PA |
Amtrak Shops |
Not Provided |
PA |
Damascus Nickel Steel Company |
Carnegie |
PA |
Philadelphia Naval Shipyard |
Uss New Jersey |
PA |
Delaware And Hudson Company |
Providence |
PA |
Bethlehem Steel Corporation |
Leetsdale |
PA |
Delaware River Cordage Mill |
Philadelphia |
PA |
E.n. Hyde Heating Company |
Pittsburgh |
PA |
Diamond Alkali Company |
Pittsburgh |
PA |
Koppers Company |
Bridgeville |
PA |
Dolph Coal Company |
Dunmore |
PA |
National Plastics Company |
Jeannette |
PA |
Dravo Corporation |
Pittsburgh |
PA |
Reynolds Manufacturing Company |
Avonmore |
PA |
Duquesne Ice Company |
Pittsburgh |
PA |
United States Steel Corporation |
Homestead |
PA |
E. G. Brooke Iron Company |
St. Peters |
PA |
Wilson Park Apartments |
Philadelphia |
PA |
East End Electric Light Company |
East Liberty |
PA |
Edgewater Corp |
Oakmont |
PA |
Econolodge |
Levittown |
PA |
Millard Quarry |
Annville |
PA |
Edison Electric Light Company |
York |
PA |
Babcock Wilcox Koppel Works |
Beaver Falls |
PA |
Eliza Furnace Plant |
Pittsburgh |
PA |
Bennett Aspen |
Philadelphia |
PA |
Empire Iron And Steel Company |
Catasauqua |
PA |
Ford Motor Co. |
Chester |
PA |
Erie Railroad Company |
Dunmore |
PA |
Jones Laughlin Steel Company |
Aliquippa |
PA |
Ewen Breaker |
Pittston |
PA |
Masontown Brewing Co. |
Masontown |
PA |
F.r. Dravo And Company |
Pittsburgh |
PA |
Pennsylvania Railroad |
Pitcairn |
PA |
Fayette R. Plumb, Incorporated |
Philadelphia |
PA |
Public Service Gas Co |
Philadelphia |
PA |
Firth-sterling Steel Company |
Mckeesport |
PA |
Thos. Wolstenholme Sons Co. |
Philadelphia |
PA |
Ft. Pitt Brewing Company |
Sharpsburg |
PA |
Wheeling Pittsburgh Steel Products |
Allenport |
PA |
Franklin Manufacturing Company |
Stoneboro |
PA |
Philadelphia Electric Co., Crombie Station |
|
PA |
G.b. Markle And Company |
Jeololo |
PA |
Bethlehem Steel Corporation |
Bethlehem |
PA |
General Electric Company |
Bridgeville |
PA |
General Supply Co. |
Coplay |
PA |
George S. Harris Sons |
Philadelphia |
PA |
Pennsylvania Power Light |
Strawberry Ridge |
PA |
Girard Coal Company |
Mt Carmel |
PA |
Westinghouse Electric Corp. |
Derry |
PA |
Glen Summit Hotel And Land Company |
Glen Summit |
PA |
Stackpole Carbon Co. |
St Mary's |
PA |
Greenville Steel Car Company |
Greenville |
PA |
Kennedy, Ebensburg Center |
Ebensbug |
PA |
H.j. Heinz And Company |
Pittsburgh |
PA |
A T T |
Allentown |
PA |
H.c. Frick Coke Company |
Monmouth |
PA |
Arco Refinery |
Philadelphia |
PA |
H.e. Colliery |
Bennett |
PA |
Bok Technical High School 8th Mifflin Streets |
Philadelphia |
PA |
Hanover Power Company |
Hanover |
PA |
Churchville Elementary |
Holland |
PA |
Harrison, Havemeyer Company, Franklin Refinery |
Philadelphia |
PA |
Delaware County Hospital |
Delaware County |
PA |
Heidelberg Colliery |
Avoca |
PA |
Exton Mall |
Exton |
PA |
Hershey Chocolate Company |
Bernville |
PA |
Georgia Pacific Pulp Paper |
Reading |
PA |
Holmesburg, Tacony And Frankford Electric Railway Company |
Tacony |
PA |
Honeywell |
Fort Washington |
PA |
Honeywell, Incorporated |
T Smethport |
PA |
Kaiser Metal |
Bristol |
PA |
Hudson Coal Company |
Olyphant |
PA |
Letterkenny Depot |
Letterkenny |
PA |
Imperial Leather Company |
Allegheny |
PA |
Morris School 26th Thompson |
Philadelphia |
PA |
Inland Container Corporation |
Philadelphia |
PA |
Park City Shops Routet 30 Bypass |
Lancaster |
PA |
Isabella Furnace Company |
Etna |
PA |
Philadelphia Electric Company Eddystone Generating Station |
Eddystone |
PA |
J.k. Wright And Company |
Philadelphia |
PA |
Pittsburgh Powerhouse |
Pittsburgh |
PA |
J.g. Brill Company |
Philadelphia |
PA |
Saint Agnes Hospital |
Philadelphia |
PA |
James P. Wood Heating Company |
Philadelphia |
PA |
Social Security Building 8th Arch Streets |
Philadelphia |
PA |
J.b. Ellison And Sons |
Philadelphia |
PA |
Temple University Life Bio-sciences Building |
Philadelphia |
PA |
Joel J. Bailey And Company |
Philadelphia |
PA |
University Of Pennsylvania Liberal Arts |
Philadelphia |
PA |
John Wood Manufacturing Company |
Conshohocken |
PA |
Us Courthouse |
Philadelphia |
PA |
Jones And Laughlin Steel Corporation |
Aliquippa |
PA |
Southeast Water Pollution Control Plant |
Philadelphia |
PA |
Kelly And Jones Company |
Greensburg |
PA |
A T T Co. |
Reading |
PA |
Keystone Engineering Company |
Pittsburgh |
PA |
Aliquippa Works Station 27 N. M. Pipe Shop |
Aliquippa |
PA |
Koppel Plant |
Beaver Falls |
PA |
Allegheny Refining Company |
Verona |
PA |
Lackawanna Iron And Steel Company |
Scranton |
PA |
Argyl Mfg Co Midway Between Windgap Pen Argyl |
Pen Argyl |
PA |
Lancaster County Railway And Light Company |
Lancaster |
PA |
Atlantic Refining Co Fourth Floor Rear |
Philadelphia |
PA |
Leader Publishing Company |
Pittsburgh |
PA |
Atlantic Refining Co Rt. Breeze Refinery North Yard 34th. St. Gate |
Philadelphia |
PA |
Lehigh And Wilkes Barre Coal Company |
South Wilkesbarre |
PA |
Baker Elem. School |
Altoona |
PA |
Lehigh Coal And Navagation Company |
Nesquehoning |
PA |
Bethlehem Steel Company Bensol Plant Coke Oven Division |
Bethlehem |
PA |
Lehigh Portland Cement Company |
New Castle |
PA |
Bethlehem Steel Company Truck Stop 242 |
Johnstown |
PA |
Lehigh Valley Coal Company |
Centralia |
PA |
Caterpillar Tractor Company |
York |
PA |
Lehighs Northampton Gas Electric Company |
Catasauqua |
PA |
Clay Mill Works No .3 Works |
Clearfield |
PA |
Liberty Powder Company |
Mt. Braddock |
PA |
Continental Rubber Works |
Erie |
PA |
Liquid Carbonic Acid Manufacturing Company |
Pittsburgh |
PA |
Duquesne Light Co. Brunot Island Generating Station Storeroom |
Pittsburgh |
PA |
Lucent Technologoes |
Reading |
PA |
Erie Lackawanna Railroad Pennsylvania State Police Team Track Oblates Of St. Joseph |
Kingston |
PA |
M.l. Bayard And Company |
Philadelphia |
PA |
Frankford Arsenal Fourth Floor Rear |
Philadelphia |
PA |
Mammoth Plant |
Mammoth Station |
PA |
Gulf Oil Corp Cooling Water Pump House #491 |
Philadelphia |
PA |
Maryland Coal Company |
Hazelton |
PA |
H. H. Heinz Lab. |
Pittsburgh |
PA |
Maxwell Colliery, #20 |
Ashley |
PA |
Hercules Powder Company Higgins Plant |
Philadelphia |
PA |
Mcconway And Torley Corporation |
Pittsburgh |
PA |
Junior High School |
Aliquippa |
PA |
Medusa Portland Cement Company |
York |
PA |
Koppers Company Chemicals Dyestuffs Div |
Petrolia |
PA |
Merck Company, Inc. |
Riverside Borough |
PA |
Koppers Company Plastics Division Kobuta Plant |
Kobuta |
PA |
Midvale Heppenstall Company |
Eddystone |
PA |
Laco Mcmullen Co |
Erie |
PA |
Milbon Manufacturing Company |
Milbon |
PA |
Letort Elem. School |
Millersville |
PA |
Model Laundry And Dry Cleaning Company |
Jeannette |
PA |
Mary Street Project |
Kingston |
PA |
Monongahela Street Railway Company |
Pittsburgh |
PA |
Metropolitan Edison Co Eyler Station Storehouse |
West Reading |
PA |
Mount Holly Springs |
Cumberland County |
PA |
Minnepolis Honeywell Reg. Co. Browns Instrument Division |
Philadelphia |
PA |
N. And G. Taylor Company |
Philadelphia |
PA |
National Forge And Ordnance Co. |
Irvin |
PA |
National Forge Company |
Irvine |
PA |
New Office Bldg. |
Lancaster |
PA |
National Tube Company, Monongahela Furnaces |
Mckeesport |
PA |
Nicholson File Company |
Philadelphia |
PA |
New Castle Electric Company |
New Castle |
PA |
Penn Argyl High School |
Pen Argyl |
PA |
New York Wilkins Company Engineers |
Pittsburgh |
PA |
Pennsylvania Industrial Chemical Co Clairton Plant Storeroom |
Clairton |
PA |
Norfolk Southern Corporation |
Hollidaysburg |
PA |
Pennsylvania Power Light Co Montour Steam Elec Station Unit 1 |
Strawberry Ridge |
PA |
Nottingham Colliery |
Plymouth |
PA |
Pennzoil Co Plant 2 |
Oil City |
PA |
Number 9 Collier |
Pettston |
PA |
Pittsburgh Activated Carbon Co Dept 848 Neville Island |
Pittsburgh |
PA |
Old Fourth Ward School |
Pittsburgh |
PA |
Publicker Industries, Inc. Chemical Plant Receiving Station 1 |
Philadelphia |
PA |
Oneida Colliery |
Oneida |
PA |
Reese Metal Products Corp |
Lancaster |
PA |
P. Mcgraw Wool Company |
Pittsburgh |
PA |
S. Bern Ohio Company |
Rouseville |
PA |
Parkersburg Iron And Steel Company |
Pittsburgh |
PA |
Skin Cancer Clinic |
Mckees Rocks |
PA |
Pencoyd Iron Works |
Pencoyd |
PA |
State Correctional Institution |
Camp Hill |
PA |
Penn Public Service Corporation |
Johnstown |
PA |
Temple Covenant Of Peace |
Easton |
PA |
Pennsylvania Light, Heat And Power Company |
Allegheny |
PA |
U. S. Steel Corporation |
Berwyn |
PA |
Pennsylvania State Hospital For Tuberculosis |
Hamburg |
PA |
U. S. Steel Corporation Carrie Furnaces |
Rankin |
PA |
Pennsylvania Coal Company |
Dunnon |
PA |
U. S. Steel Corporation Edgar Thomson Works |
Braddock |
PA |
Pennsylvania Power And Light Company |
River Station |
PA |
U. S. Steel Corporation Patt. #10, 11, 12 |
Clairton |
PA |
Pennsylvania Railroad Company |
Pottsville |
PA |
United Church Of Christ |
Bethlehem |
PA |
Pennsylvania Sugar Company |
Philadelphia |
PA |
Veterans Hospital |
Pittsburgh |
PA |
Peoples Ice Cold Storage Company |
Mckeesport |
PA |
West Penn Power Co Armstrong Power Station |
Kittanning |
PA |
Peters And Company |
Mckeesport |
PA |
Western Electric Co. Repair Facility |
King Of Prussia |
PA |
Philadelphia And Reading Railroad Company |
Philadelphia |
PA |
Westinghouse Electro Co Westinghouse Astronuclear Laboratory |
Large |
PA |
Philadelphia Company |
Pittsburgh |
PA |
Whitehall Cement Co. |
Cementon |
PA |
Philadelphia Hospital For The Insane |
Philadelphia |
PA |
Allegheny Energy |
Courtney |
PA |
Phoenix Glass Company |
Pittsburgh |
PA |
Jones Laughlin Steel Corporation |
Pittsburgh |
PA |
Pittsbugh Thermal Limited Partnership |
Pittsburgh |
PA |
Pittsburgh Provision And Packing Company |
Pittsburgh |
PA |
Pittsburgh Buffalo Company |
Ellsworth |
PA |
Pittsburgh Milling Company |
Allegheny |
PA |
Pittsburgh Steel Foundry Company |
Pittsburgh |
PA |
Pottstown Iron Company |
Pottstown |
PA |
Projectile Plant Number 2 Army Gun Carriago Shop |
South Bethlehem |
PA |
Quint Corporation |
Erie |
PA |
Railway Steel Spring Company |
Latrobe |
PA |
Bergner And Engle Brewing Company |
Philadelphia |
PA |
Richard Heckscher And Sons |
Swedeland |
PA |
Robindale |
Near Seward |
PA |
Rockwell Industries |
Reading |
PA |
S. Morgan Smith Company |
York |
PA |
Savoia Property Management Company |
Norwood |
PA |
Schuylkill Railway Company |
Girardville |
PA |
Scranton Electric Company |
Pittston |
PA |
Seneca Colliery |
Pittston Junction |
PA |
Sharon Water Works Company |
Sharon |
PA |
Shenango Valley Water Company |
Sharon |
PA |
Simpson And Watkins |
Mayfield |
PA |
Sonneborn Division |
Petrolia |
PA |
Southside Works |
Pittsburgh |
PA |
American Olean Tile Company |
Lansdale |
PA |
Spring Brook Water Supply Company |
Scranton |
PA |
Bethlehem Steel Company |
Edensburg |
PA |
Stanbridge Apartments |
Lansdale |
PA |
Brockway Glass Company, Incorporated |
Washington |
PA |
Standard Tin Plate Company |
Canonsburg |
PA |
Chester Processing Company |
Chester |
PA |
Steelton And Highspire Rail Road Company |
Bethlehem |
PA |
Design Techniques |
Stroudsburg |
PA |
Sun Company, Incorporated |
Oregon |
PA |
E.w. Bliss Company |
Midland |
PA |
Susquehanna Collieries Company |
Mt Carmel |
PA |
Frankford Metal Treating |
Philadelphia |
PA |
Taylor-wharton Iron And Steel Company |
Easton |
PA |
Globe Eye Works |
Philadelphia |
PA |
Thomas F. Deegan |
Philadelphia |
PA |
Iberia Sugar Cooperative, Incorporated |
New Iberia |
PA |
Tionesta Valley Chemical Company |
Mayburg |
PA |
Johns Manville Products Company |
Zeleinople |
PA |
Turtle Creek Valley Water Company |
Pittsburgh |
PA |
Lukens Steel Corporation |
Coatesville |
PA |
Union Mills Paper Manufacturing Company |
New Hope |
PA |
Mcclaskey Co |
Philadelphia |
PA |
United Roofing And Manufacturing Company |
Marcus Hook |
PA |
Mutual Rendering Co |
Philadelphia |
PA |
United States Steel Company |
Homestead |
PA |
North American Refr Co |
Womelsdorf |
PA |
United States Asbestos |
Manheim |
PA |
Pensylvania Forge Corp |
Tacony Philadelphia |
PA |
Valley Traction Company |
Bridgeport |
PA |
Pittsburgh Plate Glass |
Tipton |
PA |
Viscose Company |
Meadville |
PA |
Reichard Coulston |
Bethlehem |
PA |
W.h. Piper And Company |
Lilly |
PA |
Schutte Koerting Compan |
Cornwells Heights |
PA |
Wabash Pittsburgh Terminal |
Pittsburgh |
PA |
Sunbeam Equipment Co |
Meadville |
PA |
Washington Hospital |
Washington |
PA |
Tyler School Of Fine Art |
Philadelphia |
PA |
Weightman Building |
Philadelphia |
PA |
United Steel Barrell |
Philadelphia |
PA |
West Pennsylvania Hospital |
Pittsburgh |
PA |
W Rose Inc |
Sharon Hill |
PA |
Western Pennsylvania Hospital |
Pittsburgh |
PA |
Wood, Alan, Steel Company |
Conshohocken |
PA |
Westinghouse Electric Company |
South Philadephia |
PA |
Allis Chalmers Manufacturing Company |
York |
PA |
Westmoreland Coal Company |
Rillton |
PA |
Beaumont Birch Company |
Philadelphia |
PA |
Wilbur Chocolate Company |
Philadelphia |
PA |
Borzillo Bakery |
Norristown |
PA |
Williamson Brothers Company |
Philadelphia |
PA |
Delaware Company Memorial Hospital |
Drexel Hill |
PA |
William Cramp And Sons Ship And Engine Building Company |
Philadelphia |
PA |
Firestone Tire And Rubber Company |
Philadelphia |
PA |
William Miller And Sons Company |
Pittsburgh |
PA |
J.d. Morrissey, Incorporated |
Philadelphia |
PA |
Yerks And Plumb |
Frankford |
PA |
Loos Dilworth |
Philadelphia |
PA |
Scott Foam |
Eddystone |
PA |
Miller Quarries Inc. |
Rushland |
PA |
Philadelphia Railroad |
Reading |
PA |
Philadelphia Electric |
Chester |
PA |
Usx Steel Mill |
Clairton |
PA |
Ruth Bennett Project |
Chester |
PA |
Alloy Rod |
Hanover |
PA |
S.s. Olympic |
Chester |
PA |
Allied Signal, Incorporated |
Philadelphia |
PA |
Sun Shipbuilding Company |
Chester |
PA |
Boston Ohio Railroad Company |
Pittsburgh |
PA |
Union Paving Company |
Springhouse |
PA |
Philadelphia Electric Company |
Southwark |
PA |
Willson Products Division |
Reading |
PA |
Naval Dry Dock |
Philadelphia |
PA |
Mccarter Iron Works |
Morristown |
PA |
Jl Steel |
Ambridge |
PA |
Philadelphia Electric Co. Richmond Station |
Philadelphia |
PA |
Sui Gas Purification Plant |
Sui |
PA |
Sun Oil |
Toledo |
PA |
Warren Power Plant (kinzua Dam) |
Warren |
PA |
International Boiler Works Co |
Stroudsburg |
PA |
Bethlehem Steel Corporation Lehigh Division Bethlehem Plant |
Bethlehem |
PA |
American Dredging Company |
Philadelphia |
PA |
Arnomink Steam Heat Company |
Drexel Hill |
PA |
Canonsburg Pottery Compan |
Canonsburg |
PA |
Hannastown Plant/jamison Coal And Coke |
Hannastown |
PA |
Chevron Asphalt Co |
Springdale |
PA |
Franklin Marshall College |
Lancaster |
PA |
Dynamet Inc |
Washington |
PA |
Pittsburgh Lake Erie Railroad |
Mckees Rock |
PA |
Lehigh Portland Cement |
Allentown |
PA |
Pennsylvania Electric Company Conemaugh Station |
New Florence |
PA |
Philadelphia College Of Arts |
Philadelphia |
PA |
General Electric Company |
Philadelphia |
PA |
Blind Floral Co |
Pittsburgh |
PA |
Temple University Medical School |
Philadelphia |
PA |
Clermont Engineering Co I |
Philadelphia |
PA |
Shenango Inc. (a/k/a Davison Coke Iron; Pittsburgh Coke Iron) |
Pittsburgh |
PA |
Duquesne Light Co |
Elrama |
PA |
Duquesne Light Company Shippingport #1 |
Shippingport |
PA |
Floor Chemical Corp |
Philadelphia |
PA |
Westfield Tanning Company |
Westfield |
PA |
Graham Jean |
Malvern |
PA |
Asg Industries |
Jeannette |
PA |
Johnston The Florist |
Irwin |
PA |
Fazekas Frank |
Easton |
PA |
Maritime Supply Co |
Philadelphia |
PA |
Kennedy Van Saun |
Danville |
PA |
New A And B Foundry Inc |
Connellsville |
PA |
Pennsylvania Power Light |
York Haven |
PA |
Philadelphia College Of A |
Philadelphia |
PA |
Teledyne-columbia-summerhill |
Scottsdale |
PA |
Ppg Industires Inc |
Meadvill |
PA |
Black River |
Chester |
PA |
Specialty Rings Products |
Cornwells Hgts |
PA |
Uss New Orleans |
Philadelphia |
PA |
Union Electric Steel Corporation |
Carnegie |
PA |
Sun Shipbuilding Drydock Co. |
Chester |
PA |
Westinghouse Elec Corp |
Derry |
PA |
Anchor Hocking Glass Corp. |
Lancaster |
PA |
Pennwest Fuels |
Clymer |
PA |
Beaver Valley Power Station Unit |
Shippingport |
PA |
Freeport Brick Co |
Freeport |
PA |
Byberry State Hospital |
Philadelphia |
PA |
Vasco |
Latrobe |
PA |
Duquesne Light Company |
Shippingport |
PA |
Babcock Wilcox |
Koppel |
PA |
General Refractories |
Sproul |
PA |
Corning |
Bradford |
PA |
Hk Porter Company |
Pittsburgh |
PA |
Alleghany Ludlum Steel |
Leechburg |
PA |
Koppers Company |
Oil City |
PA |
Chem-clay Corporation |
Carnegie |
PA |
Philadelphia Electric |
Falls Twp |
PA |
Ferro Corporation |
Bigler |
PA |
Pittsburgh Corning Corporation |
Pittsburgh |
PA |
Homestead Industries |
Coraopolis |
PA |
Rymet Corporation |
King Of Prussia |
PA |
Milton Manufacturing Co. |
Milton |
PA |
W. P. Duckworth |
Lansdowne |
PA |
Pittsburgh Commercial |
Pittsburgh |
PA |
Westinghouse Electric Company |
Cheswick |
PA |
Standard Steel |
Burnham |
PA |
Oxychem |
Berwyn |
PA |
Western Penn |
Pittsburgh |
PA |
Red Lion High School |
Red Lion |
PA |
General Electric Company |
Courtney |
PA |
Alloy Rods Company And Chemetron Corporation |
Hanover |
PA |
Armstrong Cork Company Building 34-e |
Lancaster |
PA |
Glatfelter P H Co. |
Spring Grove |
PA |
Conemaugh Power Station Unit #1 |
New Florence |
PA |
Stefanak Company |
Farrell |
PA |
Philadelphia Electric Company |
Philadelphia |
PA |
Jones Laughlin Steel Corporation, Southside Works |
Pittsburgh |
PA |
American Radiator Standard Sanitary Corporation Bessemer Building |
Pittsburgh |
PA |
Usg Sun Shipbuilding Dry Dock |
Chester |
PA |
Charmin Paper Company Outdoor Tank |
Scranton |
PA |
Babcock Wilcox |
Beaver |
PA |
Pennsylvania Power Light Montour Station Unit #2 |
Washingtonville |
PA |
Pennsylvania Electric Company Homer City Generating Station |
Homer City |
PA |
Armstrong Power Station |
Reesedale |
PA |
Abington Hospital |
Abington |
PA |
General Electric Company Apparatus Pittsburgh Service Center |
West Mifflin |
PA |
Allied Chemical Corporation |
Philadelphia |
PA |
Pennsylvania Electric Company Shawville Plant Units 3 And 4 |
Shawville |
PA |
Amstar Sugar Factory |
Philadelphia |
PA |
Philadelphia Electric Company Schuylkill Generating Station |
Philadelphia |
PA |
Backos Johns Lumberyard |
Pitcairn |
PA |
U.s. Steel, Homestead Works |
Homestead |
PA |
Bethlehem Steel |
Lebanon |
PA |
Arco Atlantic Refinery |
Philadelphia |
PA |
Bustleton Elementary |
Philadelphia |
PA |
Letort Elementary School |
Millersville |
PA |
Columbia Plumbing Supply House |
Philadelphia |
PA |
Peco Cromby Power Plant |
Phoenixville |
PA |
Domino Sugar Refinery |
Philadelphia |
PA |
Mccann Shields Paint Co. |
Pittsburgh |
PA |
Fitzpatrick Sheetmetal |
Dubois |
PA |
Uss Division Of Usx Corporation [ship] |
Homestead |
PA |
Grant Towers |
Duquesne |
PA |
Day |
Philadelphia |
PA |
Holy Redeemer Hospital |
Philadelphia |
PA |
Nicholson |
Philadelphia |
PA |
Jones Laughlin Steel |
Braddock |
PA |
#5 Shaft |
Dunmore |
PA |
Ledwig Huntel Company |
Sharon Hill |
PA |
A.j. Cameron Company |
Philadelphia |
PA |
Mccarter Iron |
Norristown |
PA |
Acme Tea Company |
Philadelphia |
PA |
National Heat Power |
Philadelphia |
PA |
Alcoa Technical Center |
Merwin |
PA |
Owens-illinois |
Brookville |
PA |
Allegheny City Electric Light Company |
Allegheny |
PA |
Pennsylvania Fruit |
Philadelphia |
PA |
Allegheny General Hospital |
Pittsburgh |
PA |
Pico Chemical |
Clairton |
PA |
Allentown Rapid Service Ice Company |
Allentown |
PA |
R.c.a. |
Dunmore |
PA |
Altoona High School |
Altoona |
PA |
Sacred Heart Hospital |
Allentown |
PA |
American Sheet And Tin Plate Company |
Monessen |
PA |
Spector Freight System |
Philadelphia |
PA |
American Axe And Tool Company |
Beaver Falls |
PA |
Susquehanna Power Station |
Shawville |
PA |
American Cyanamid Company |
Bridgeville |
PA |
Union Steel |
Pittsburgh |
PA |
American Sheet Tin Plate Company |
Demmler |
PA |
Westinghouse |
Pittsburgh |
PA |
American Viscose Corporation |
Meadville |
PA |
Duquesne Light Co. Brunot Island Generating Station |
Pittsburgh |
PA |
Apollo Iron Steel Company |
Templeton |
PA |
Certainteed |
Valley Forge |
PA |
Art Loom Corporation |
Philadelphia |
PA |
Black Burn Russell Co |
Bedford |
PA |
August Wagner Breweries, Incorporated |
Pittsburgh |
PA |
W W Armstrong Inc |
Carnegie |
PA |
Baldwin Locomotive Works |
Burnham |
PA |
Eureka Div Of Litton Ind |
Dunmore |
PA |
Barrett Company |
Bethlehem |
PA |
Gree Inc |
Erie |
PA |
Beaver County Home And Hospital |
Beaver |
PA |
United Atkinson Inc |
Erie |
PA |
Bellefonte Gas Company |
Bellefonte |
PA |
The U G I Corp |
Harrisburg |
PA |
Berwind White Coal Mining Company |
Lindsey |
PA |
Delaware Insulation Co |
Lester |
PA |
Bethlehem Steel Company |
Bethlehem |
PA |
Orr Sembauer Co |
Middletown |
PA |
Black And Germer |
Erie |
PA |
Armstrong Contracting Supply Corporation |
Philadelphia |
PA |
Booster Boiler House Saucon Plant |
South Bethlehem |
PA |
William A Mc Dowell Jr Co |
Philadelphia |
PA |
Braeburn Steel Company |
Braeburn |
PA |
Baldwin-ehert-hill Inc |
Port Kennedy |
PA |
Brown Instrument Company |
Philadelphia |
PA |
Sharon Steel Co |
Sharon |
PA |
Buhl Steel Company |
Sharon |
PA |
Valley Forge State Park |
Valley Forge |
PA |
C.e. Monday And Company |
Philadelphia |
PA |
Air Products, Inc. |
Emmaus |
PA |
Cambria Steel Company |
Philadelphia |
PA |
American Welding Company |
Carbondale |
PA |
Carnegie Brothers And Company Limited |
Pittsburgh |
PA |
Bradford Supply Company |
Lawton Lease |
PA |
Carnegie Steel Company |
Pittsburgh |
PA |
Consolidated Rail Corp. |
Philadelphia |
PA |
Carrie Furnace Company |
Rankin |
PA |
Duquesne Light Co.- Frank R. Phillips Power Station |
Cheswick |
PA |
Centralia Colliery |
Centralia |
PA |
Glassine Paper Co. |
West Conshohocken |
PA |
Charles St. Suppes |
Johnstown |
PA |
Hydro-blast Corporation |
Danville |
PA |
Chicago Pneumatic Tool Company |
Franklin |
PA |
Lehigh Engineering Company |
Dunmore |
PA |
City Of Pittsburgh Brilliant Pumping Station |
Pittsburgh |
PA |
Merck Company, Inc. |
Riverside |
PA |
Coal And Coke By-products Company |
Pittsburgh |
PA |
Ple Railroad |
Mckees Rock |
PA |
Colonial #1 Plant |
Smock Station |
PA |
People Natural Gas |
White Valley |
PA |
Commonwealth Trust Company |
Pittsburgh |
PA |
Pure Oil Company |
Marcus Hook |
PA |
Consolidated Traction Company |
Pittsburgh |
PA |
Stackpole Carbon |
St Mary's |
PA |
Coxe Brothers And Company |
Deringer |
PA |
Union Carbide Carbon Chemical Corporation- |
Duquesne |
PA |
Cromby Generating Station |
Cromby |
PA |
Westinghouse Electric Manufacturing Co. |
Trafford |
PA |
D.b. Fuller |
Philadelphia |
PA |
Bethlehem Steel |
Bethlehem |
PA |
Daniel J. Keating |
Philadelphia |
PA |
Philadelphia Naval Shipyard |
Uss Valley Forge |
PA |
Delaware And Hudson Company |
Scranton |
PA |
Bethlehem Steel Corporation |
Steelton |
PA |
Delaware River Steel Company |
Chester |
PA |
Edgewater Corporation |
Oakmont |
PA |
Diamond Drill Machine Company |
Birdsboro |
PA |
Korhumel Steel Aluminum Company-mill Strip Division |
New Castle |
PA |
Dolph Coal Company |
Scranton |
PA |
National Portland Cement |
Bethlehem |
PA |
Dravo Doyle Company |
Pittsburgh |
PA |
Robinson Ventilating Company |
Zelienople |
PA |
Duquesne Light Company |
Rankin |
PA |
United States Steel Corporation |
Mckees Rocks |
PA |
E.c. Knight And Company |
Philadelphia |
PA |
Sinclair Refining Company |
Marcus Hook |
PA |
East End Electric Light Company |
Pittsburgh |
PA |
Electralloy Corp |
Oil City |
PA |
Edensburg Coal Company |
Colver |
PA |
National Portland Cement Co |
Bethlehem/brodhead |
PA |
Edison Electric Light Company |
Philadelphia |
PA |
Bethlehem Steel |
Ambridge |
PA |
Elizabeth Steel Magee Hospital |
Pittsburgh |
PA |
Bureau Of Mines |
Bruceton |
PA |
Empire Mills |
Philadelphia |
PA |
Ford Pitt Hotel |
Pittsburg |
PA |
Erie Railroad Company |
Susquehanna |
PA |
J. H. C. K. Eagle |
Shamokin |
PA |
Excelsior Coal Company |
Excelsior |
PA |
Mesta Machine Co. |
Pittsburg/homestead |
PA |
F.c. Roberts |
Philadelphia |
PA |
Pennsylvania Railroad |
Shire Oaks |
PA |
Federal Container Company |
Philadelphia |
PA |
Pumping Station-landers Point |
Landers Point |
PA |
Firth-sterling Steel Company |
Demmler |
PA |
Underwood Coal Co |
Scranton |
PA |
Ft. Pitt Hotel |
Pittsburgh |
PA |
Whitehall Cement Co. |
Annville |
PA |
Franklin Quality Refining Company |
Franklin |
PA |
Philadelphia Electric Co., Delaware Sta. |
|
PA |
G.a.f. Corporation Industrial Prod Division |
Erie |
PA |
Bethlehem Steel Corporation |
Johnstown |
PA |
General Electric Company |
New Kensington |
PA |
H.r. Curry Co. |
Sharpsburg |
PA |
George W. Blabon Company |
Nicetown, Philadelphia |
PA |
Pennsylvania Power Light |
Washingtonville |
PA |
Girard Coal Company |
Pittston |
PA |
Westinghouse Electric Corp. |
East Pittsburgh |
PA |
Glen Willow Ice Manufacturing Company, Manayunk |
Philadelphia |
PA |
Titan Metal Manufacturing Co. |
Bellefonte |
PA |
Griffin Enamuel Brick Company |
Peukiomen |
PA |
Keystone, Ebensburg Center |
Ebensbug |
PA |
H.k. Cummings |
Philadelphia |
PA |
A T T |
Pottstown |
PA |
H.c. Frick Coke Company |
Mt. Pleasant |
PA |
Armstrong Power Station |
Kittanning |
PA |
H.h. Robertson Company |
Pittsburgh |
PA |
Bp Oil |
Marcus Hook |
PA |
Happenstall Company |
Pittsburgh |
PA |
Civic Center 34th Street |
Philadelphia |
PA |
Harry A. Prock Cabinet Company |
Glenside |
PA |
Delaware County Prison |
Thornton |
PA |
Heintz Division Of Kelsey Hayes Company |
Philadelphia |
PA |
Federal Office Building Courthouse 6th Arch Streets |
Philadelphia |
PA |
Hershey Chocolate Usa |
Hershey |
PA |
Germantown Hospital |
Philadelphia |
PA |
Home Electric Light And Steam Heating Company |
Tyrone |
PA |
Hopkinson House Apartments |
Philadelphia |
PA |
Hood, Bonbright And Company |
Philadelphia |
PA |
Kane School 26th Jefferson |
Philadelphia |
PA |
Hudson Coal Company |
Carbondale |
PA |
Limerick Nuclear Power Plant |
Limerick |
PA |
Independent Brewing Company |
Allegheny |
PA |
Mrs Paul`s Frozen Foods Tabor Road |
Philadelphia |
PA |
International Motor Company |
Allentown |
PA |
Park City Stores |
Park City |
PA |
Isimbel Brothers Stable |
Philadelphia |
PA |
Philadelphia Electric Barbadoes Station |
West Norriton |
PA |
J. Mundell And Company |
Philadelphia |
PA |
Point Marion Powerhouse |
Point Marion |
PA |
J.g. White And Company |
Palo Alto |
PA |
Saint Ignatius Church |
Yardley |
PA |
James Wolfenden |
Lock Haven |
PA |
Solis-cohen |
Philadelphia |
PA |
J.e. Patterson And Company |
Pittston |
PA |
Temple University Social Science Building |
Philadelphia |
PA |
John A. Rigg |
Reading |
PA |
University Of Pennsylvania Maloney Building |
Philadelphia |
PA |
John Yewdall Keystone Mills |
Philadelphia |
PA |
Us Courthouse Office Building |
Philadelphia |
PA |
Joseph S. Finch And Company |
Schenley |
PA |
Southwest Water Pollution Control Plant |
Philadelphia |
PA |
Kelly And Jones Company |
Pittsburgh |
PA |
Abbotts Dairies Inc |
Belleville |
PA |
Keystone Plantation |
Wyoming |
PA |
Aliquippa Works Track Station Nbr 103 |
Aliquippa |
PA |
Koppers Company |
Pittsburgh |
PA |
Allentown Hospital Boiler House |
Allentown |
PA |
Lackawanna And Wyoming Valley Company |
Scranton |
PA |
Argyl Mfg Co Midway Between Windgap Pen Argyl Rfg 1 |
Pen Argyl |
PA |
Lancaster Water Works |
Lancaster |
PA |
Atlantic Refining Co Location 1 |
Philadelphia |
PA |
League Island |
Philadelphia |
PA |
Atlantic Refining Co Schuylkill And Lanier |
Philadelphia |
PA |
Lehigh And Wilkes Barre Coal Company |
Sugar Notch |
PA |
Allied Chemical Dye Corporation Arrett Division |
Philadelphia |
PA |
Lehigh Coal And Navagation Company |
Hauto |
PA |
Bethlehem Steel Company Boiler House #2 |
Bethlehem |
PA |
Lehigh Portland Cement Company |
Ormrod |
PA |
Bethlehem Steel Company West End Yards Supply Department |
Steelton |
PA |
Lehigh Valley Coal Company |
Hazleton |
PA |
Caterpillar Tractor Company Bldg. B |
East York |
PA |
Leicester Continental Mills Company |
Germantown |
PA |
Clearview Elem. School |
Bethlehem |
PA |
Lickdale Iron Company |
Lickdale |
PA |
Corning Glass Works |
Bradford |
PA |
Lochiel Rolling Mill Company |
Harrisburg |
PA |
Duquesne Light Co Cheswick Power Station |
Springdale |
PA |
Lucy Furn |
Pittsburgh |
PA |
Erie Lackawanna Railroad Public Siding |
Kingston |
PA |
M.h. Pickering |
Pittsburgh |
PA |
Franklin Sugar Company |
Philadelphia |
PA |
Manayunk |
Philadelphia |
PA |
Gulf Oil Corp Gate #24 |
Girard Point |
PA |
Maryland Coal Company |
Philadelphia |
PA |
H. J. Heinz Co Mechanical Stock Room |
Pittsburgh |
PA |
Mc Cullough Iron Company |
Philadelphia |
PA |
Hershey State Police Training Barri |
Hershey |
PA |
Mccracken Stark And Company |
Philadelphia |
PA |
Kaiser Job |
Butler |
PA |
Megargee Paper Company |
Edgely |
PA |
Koppers Company Coal Hydrogenation Pilot Plant |
Verona |
PA |
Merck, Sharp And Dohme |
West Point |
PA |
Koppers Company Tar Chem Div |
Oil City |
PA |
Midvale Heppenstall Company |
Philadelphia |
PA |
L-air Liquide Walnut Street Gate |
Johnstown |
PA |
Mill Creek Coal Company |
New Boston |
PA |
Lilly Washington School |
Lilly |
PA |
Mohawk Valley Brewing Company |
Philadelphia |
PA |
Mary Wood College New Boiler Room |
Scranton |
PA |
Monongahela Light And Power Company |
Rankin |
PA |
Metropolitan Edison Co Portland Generating Station |
Portland |
PA |
Mount Lebanous Ice Company |
Mt Lebanon |
PA |
Minotte Brothers Company |
Pittsburgh |
PA |
N.r.s. Yewdall |
Philadelphia |
PA |
National Gypsum Company Boiler House |
New Columbia |
PA |
National Galvanizing Works |
Mckeesport |
PA |
New Pellet Plant |
Cornwall |
PA |
National Tube Works Company |
Mckeesport |
PA |
North Huntington Twp High School |
Irwin |
PA |
New Castle Light, Heat, And Power Company |
New Castle |
PA |
Penn Dixie Cement Corporation Plant No 9 |
West Winfield |
PA |
Newburn Glass Company |
Royersford |
PA |
Pennsylvania Industrial Chemical Co Gate 1 |
Chester |
PA |
Norristown Magnesia And Asbestos Company |
Norristown |
PA |
Pennsylvania Power Light Co Montour Steam Elec Station Unit 2 |
Strawberry Ridge |
PA |
Number 6 Bolliery |
Pittston |
PA |
Pennzoil Refining Co. Plant No. 1 |
Rouseville |
PA |
Number 9 Colliery Near |
Pittston |
PA |
Pittsburgh Coke Chemical Co. |
Mckees Rocks |
PA |
Old Meadow Works |
Pittsburgh |
PA |
Punxsutawney Elem. School Punxsutawney Secondary School |
Punxsutawney |
PA |
Open Hearth Division |
Homestead |
PA |
Reiners |
Pittsburgh |
PA |
Pacific Railroad Western Lines |
Conway |
PA |
Skf Altoona Plant Addition |
Altoona |
PA |
Parkesburg Iron Company |
Parkesburg |
PA |
Smoketown Elementary School East Lampeter Township |
Lancaster |
PA |
Pencoyd Iron Works |
Philadelphia |
PA |
Stores Department |
Beaver Falls |
PA |
Penn Public Service Corporation |
Seward |
PA |
Theodore E. Moser |
Philadelphia |
PA |
Pennsylvania Lines, West Of Pittsburgh, Allegheny Shops |
Allegheny |
PA |
U. S. Steel Corporation |
Clairton |
PA |
Pennsalt Chemicals Corporation |
King Of Prussia |
PA |
U. S. Steel Corporation Clairton By Product Coke Works |
Clairton |
PA |
Pennsylvania Coal Company |
Mt. Lookout |
PA |
U. S. Steel Corporation Edgar Thomson Works Braddock, Penna. |
Bessemer |
PA |
Pennsylvania Power Company |
Ellwood City |
PA |
U. S. Steel Corporation R. G. Peiliker Applied Research Lab. |
Monroeville |
PA |
Pennsylvania Railroad Company |
Reading |
PA |
United Gas Improvement Company Gas Plant |
Steelton |
PA |
Pennsylvania Sugar Division, National Sugar Refining Company |
Philadelphia |
PA |
Villanova University New Law School Bldg. |
Villanova |
PA |
Peoples Ice Light And Storage Company |
Mckeesport |
PA |
West Penn Power Co Armstrong Power Station |
Reesedale |
PA |
Peters Packing Company |
Mckeesport |
PA |
Western Electric Company Allentown Works Building 21 |
Allentown |
PA |
Philadelphia And Reading Railroad Company |
Mahanoy Plane |
PA |
Westinghouse Electric Corp. Sharon Transformer Plant Boiler House |
Sharon |
PA |
Philadelphia Company Of Pittsburgh |
Pittsburgh |
PA |
Wilkes Barre Steam Heat Company Power Plant |
Wilkes Barre |
PA |
Philadelphia Museum |
Philadelphia |
PA |
Allegheny Energy |
Kittanning |
PA |
Phoenix Glass Company |
Monaca |
PA |
Knoll Products, Inc. |
Hanover Township |
PA |
Pittsburgh And Birmingham Traction Company |
Pittsburgh |
PA |
Pittsburgh Railways Company |
Pittsburgh |
PA |
Pittsburgh Buffalo Company |
Burgettstown |
PA |
Pittsburgh Milling Company |
Pittsburgh |
PA |
Pittsburgh Steel Foundry |
Glassport |
PA |
Pottsville Iron And Steel Company |
Pottsville |
PA |
Prospect Colliery |
Wilkes Barre |
PA |
R.d. Wood |
Philadelphia |
PA |
Rainey Wood Coke Company |
Swedeland |
PA |
Reisinger Prather Company |
Pittsburgh |
PA |
Richmond Station |
Philadelphia |
PA |
Robinson And Rea Manufacturing Company |
Pittsburgh |
PA |
Rohm And Haas Company |
Bristol |
PA |
S.s. Marvin Branch |
Pittsburgh |
PA |
Saxton Iron Company |
Saxton |
PA |
Schuylkill Station, Christian St. |
Philadelphia |
PA |
Scranton Gas And Water Company |
Scranton |
PA |
Senior High School Building |
Philadelphia |
PA |
Sharpless And Sons |
Philadelphia |
PA |
Sheridan Supply Company |
Newmanstown |
PA |
Simpson And Watkins |
Peckville |
PA |
South Chester Tube Company |
Chester |
PA |
A. Moe Company |
Philadelphia |
PA |
Southwark Foundry And Machine Company |
Philadelphia |
PA |
Asphalt Paving Company |
Norristown |
PA |
Spring Mill Manor |
Ivyland |
PA |
Bethlehem Steel Company |
Ebensburg |
PA |
Standard Chair Company |
Union City |
PA |
Brockway Glass Company, Incorporated |
Brockway |
PA |
Standard Underground Cable Company |
Pittsburgh |
PA |
Clarks Summit State Hospital |
Clarks Summit |
PA |
Stegmaier Brewing Company |
Wilkes Barre |
PA |
Deval Corporation |
Philadelphia |
PA |
Sun Oil Company |
Philadelphia |
PA |
Eastern Foundry Company |
Boyertown |
PA |
Susquehanna Silk Mills |
Jersey Shore |
PA |
Franklin Building Supply |
Nashville |
PA |
Tech Food Products Company |
Pittsburgh |
PA |
Goldsteins Sons, Incorporated |
Philadelphia |
PA |
Thomas H. Grigg |
Philadelphia |
PA |
Industrial Equipment Company |
Scranton |
PA |
Torrance State Hospital |
Torrance |
PA |
Jones Laughlin Steel Company |
Aliquippa |
PA |
Tyler Charcoal Iron Tin Mills |
Washington |
PA |
Lupton Mfg Co |
Philadelphia |
PA |
Union Spring Manufacturing Company |
Pittsburgh |
PA |
Mcconway Torley Corp |
Pittsburgh |
PA |
United States Asbestos Company |
Manheim |
PA |
National Cricible Co |
Philadelphia |
PA |
United States Steel Corporation |
Clairton |
PA |
Nuclear Mat Equip Corp |
Apollo |
PA |
United States Asbestos, Division Of Raybestos Manhattan, Incorporated |
Manheim |
PA |
Philadelphia Burner Serv |
Philadelphia |
PA |
Valley Traction Company, Lemoyne |
Cumberland County |
PA |
Pittsburgh Plate Glass |
Springdale |
PA |
Tasty Baking Company Incorporated |
Philadelphia |
PA |
Reirlay State Hospital |
Hemlock Creek |
PA |
W.h. Piper And Company |
Philadelphia |
PA |
Schuykill Forge Co |
Cornwells Heights |
PA |
Wager And Cox |
Bridgeport |
PA |
Superior Drawn Steel Co |
Monaca |
PA |
Washington Ice Company |
Washington |
PA |
U S Aluminum Corp |
Marietta |
PA |
Weightman Estate |
Philadelphia |
PA |
Univ Atlas Cem Div Of Uss Corp |
Universal |
PA |
West Pennsylvania Power Company |
Connellsville |
PA |
Warner Co |
De Vault |
PA |
Western Pennsylvania Hospital For Insane |
Dixmont |
PA |
Woodings Verona Steel Works |
Verona |
PA |
Westinghouse Electric Company |
Youngwood |
PA |
Alloy Steel |
Southampton |
PA |
Westmoreland County Home For The Destitute |
Greensburg |
PA |
Bers Corporation |
Philadelphia |
PA |
Wilkes Barre Anthracite Coal Company |
Wilkes Barre |
PA |
Bryton Chemical Company |
Trainer |
PA |
Williamsport Free School Of Mechanical Trades |
Media |
PA |
Dewitt P. Henry Candy Company |
Philadelphia |
PA |
William F. Forepaugh Jr. And Bro. |
Philadelphia |
PA |
Fischer Porter |
Warminster |
PA |
William Penn High School |
Philadelphia |
PA |
J.t. Bennett Company |
Philadelphia |
PA |
Yewdall And Jones Brothers |
Philadelphia |
PA |
Lorens Heat Treating |
Philadelphia |
PA |
United States Steel |
Ellwood City |
PA |
National Molasses |
Philadelphia |
PA |
British Petroleum Company |
Trainer |
PA |
Philadelphia Rust |
Philadelphia |
PA |
Boston Ohio Railroad Company |
Connellsville |
PA |
S.f. Whitman |
Philadelphia |
PA |
Gpu Nuclear Corporation, Three Mile Island Unit |
Harrisburg |
PA |
S.s. Olympic Rock |
Philadelphia |
PA |
Boston Ohio Railroad Company |
Philadelphia |
PA |
Superintendent U.s. Mint |
Philadelphia |
PA |
Carnegie Illinois Steel Corporation |
Pittsburgh |
PA |
Valley Camp Coal Company |
Poland |
PA |
Standard Oil |
Steelton |
PA |
Allegheny County Workhouse |
Blawnox |
PA |
Pittsburgh And Lake Erie Railroad |
Glassport |
PA |
Medusa Portland Cement |
Wampun |
PA |
Ltv Steel |
Monaca |
PA |
Pittsburgh Coal Co |
Allegheny |
PA |
Water And Power Development Authority, Upper Sind Plant |
Sukkur |
PA |
Sun Oil Co. Refinery |
Marcus Hook |
PA |
Williamsburg Generating Station |
Williamsburg |
PA |
Glen Gery Shade Brick |
Shillington |
PA |
Magee Carpet Co. |
Bloomsburg |
PA |
Atlantic Refining Co |
Philadelphia |
PA |
Philadelphia Electric Cromby Station |
E. Pikeland Township |
PA |
Columbia Boiler Co Of Pot |
Pottstown |
PA |
Pennsylvania Power Light Co. Cedar Steam Electric Station |
Harrisburg |
PA |
Combustion Equipment Serv |
Quakertown |
PA |
Radio Corp Of America/rca |
Lancaster |
PA |
Hahn Louis Sons |
Pittsburgh |
PA |
Kelsey Hayes Wheel Company |
Mckeesport |
PA |
E Keeler Co |
Williamsport |
PA |
Meyer Zausner Inc |
New Holland |
PA |
Bristol Steel Treating Co |
Bristol |
PA |
Gulf Oil Corporation |
Philadelphia |
PA |
Blue Flame Burners Inc |
Pittsburgh |
PA |
The American Pulley Company |
Philadelphia |
PA |
Colonial Metals Company |
Columbia |
PA |
St. Francis Hospital |
Pittsburgh |
PA |
Duquesne Light Co |
Pittsburgh |
PA |
P.h. Glatfelter |
Spring Grove |
PA |
Florig Equipment Co |
Conshohocken |
PA |
Muskin Mfg Co (a/k/a Wilkes Barre Lace Mfg) |
Wilkes Barre |
PA |
Gramham Jean |
Malvern |
PA |
Atlantic Oil Heat |
White Hall |
PA |
Jones And Laughlin Steel |
Aliquippa |
PA |
Flinn Dreffein |
York |
PA |
Mcconovay And Torley Corp |
Pittsburg |
PA |
Kennedy Van Saun C/o Warner |
Devault |
PA |
No Am Refr |
Curwensville |
PA |
Philadelphia Electric |
Philadelphia |
PA |
Philadelphia Gas Works |
Philadelphia |
PA |
Thermal Research Engineering |
Conshohocken |
PA |
Ppg Industries |
Tipton |
PA |
Chocura |
Philadelphia |
PA |
Speciatly Rings Products |
Cornwells Hgts |
PA |
Uss Newport |
Philadelphia |
PA |
Union Spring And Mfg Co |
New Kenslington |
PA |
Alcoa |
Pittsburgh |
PA |
Westinghouse Electric Co |
Lestar |
PA |
Ap Green |
Philadelphia |
PA |
Ppg Industries |
Meadville |
PA |
Bethlehem Corporation |
Easton |
PA |
Harry Roman |
Pittsburgh |
PA |
Car Mar Welding Service |
Berwick |
PA |
Vulcan Mold |
Latrobe |
PA |
E Keeler |
Williamsport |
PA |
M.w. Kellogg |
Williamsport |
PA |
General Refractories Co. |
Philadelphia |
PA |
Westinghouse |
Blairsville |
PA |
Hoetetters Supply Company |
York |
PA |
Allis Chalmers |
York |
PA |
Lebanon Plumbing Supply Co |
Lebanon |
PA |
Chem-clay Corporation |
Pittsburgh |
PA |
Philadelphia Electric |
Phoenixville |
PA |
Ferro Corporation |
Erie |
PA |
Polymer Corporation |
Reading |
PA |
Imagining Systems |
Latrobe |
PA |
Selas Corporation Of America |
Dresher |
PA |
National Roll Division |
Avonmore |
PA |
Combustion Engineering Inc. |
Port Kennedy |
PA |
Pittsburgh Heat |
Pittsburgh |
PA |
Westinghouse Electric Company |
Monroeville |
PA |
Standard Steel |
Lewiston |
PA |
P Le Railroad |
Beaver Falls |
PA |
Western Penn |
Shippingport |
PA |
State Correctional Institute |
Camp Hill |
PA |
Mitchell Power Station Washington County |
Courtney |
PA |
Alloy Rods Company And Chemetron Corporation |
York |
PA |
Armstrong Cork Company Buildings 403-408 |
Lancaster |
PA |
Excelsior Brass |
Reading |
PA |
Conemaugh Power Station Unit #2 |
New Florence |
PA |
Anvil International |
Columbia |
PA |
Philadelphia Electric Company Edison Steam Plant 9th Sansom |
Philadelphia |
PA |
Sun Shipbuilding Dry Dock Company, Sunship/pennship |
Chester |
PA |
Armstrong Cork Company Pitt Plant 24th Street |
Pittsburgh |
PA |
American Can Company |
Fairless Hills |
PA |
Pennsylvania Electric Company Seward Station Westmoreland County |
Seward |
PA |
Babcock Wilcox |
Wallace Run Plant |
PA |
Merck Sharpe Dohme Building 65 Cat Home |
West Point |
PA |
Masontown Bridge, Hatfield Power Station |
Monongahela |
PA |
Atlantic Richfield Company, Barge Loading Facilities |
Philadelphia |
PA |
A.c. S. |
Lancaster |
PA |
Gratz Gillespie School, 17th Luzerne |
Philadelphia |
PA |
Allied Chemical |
Marcus Hook |
PA |
Pennsylvania Power Light, Brunner Island Plant |
York Haven |
PA |
Anthony Compola Plumbing |
Philadelphia |
PA |
Philadelphia General Hospital, Medical Examiners Laboratory |
Philadelphia |
PA |
Badenhauser |
Cornwell Heights |
PA |
U.s. Steel, Neville Island |
Pittsburgh |
PA |
Bethlehem Steel Mill |
Pittsburgh |
PA |
Edgecomb Steel |
Philadelphia |
PA |
Byberry State Mental Hospital |
Philadelphia |
PA |
Liberty Bell Race Track |
Philadelphia |
PA |
Cominsky Warehouse |
Windber |
PA |
Charmin Paper |
Meshoppen |
PA |
Draper Yost, Incorporated |
Tamaqua |
PA |
Monsey Products |
Kimberton |
PA |
Food Fair |
Philadelphia |
PA |
Alert |
Chester |
PA |
Great Lakes Steel |
Pittsburgh |
PA |
Delta Ecuador |
Chester |
PA |
Hopeman Borthers |
Chester |
PA |
Oklahoma City |
Philadelphia |
PA |
Jones Laughlin Steel |
Philadelphia |
PA |
#8 Colliery |
Dunmore |
PA |
Lee Hospital |
Johnstown |
PA |
A.j. Haws Sons Limited |
Johnstown |
PA |
Mcgraw-edison |
Canonsburg |
PA |
Adams Mine |
Irwin |
PA |
National Standard |
Mount Joy |
PA |
Alcoa Technical Center |
Alcoa Center |
PA |
Ppg Industries |
Pittsburgh |
PA |
Allegheny County Home |
Woodville |
PA |
Pennsylvania Range Boiler |
Philadelphia |
PA |
Allegheny Heating Company |
Allegheny |
PA |
Pillsbury Plant |
East Greenville |
PA |
Allentown-bethlehem Gas Company |
Allentown |
PA |
R.c.a. Building |
Sayre |
PA |
Altoona School District, Altoona High School |
Altoona |
PA |
Schaefer Brewery |
Philadelphia |
PA |
American Sheet Steel Company |
Mckeesport |
PA |
Springdale Powerhouse |
Springdale |
PA |
American Axe And Tool Company |
Glassport |
PA |
Sweets Steel |
Williamsport |
PA |
American Dyewood Company |
Chester |
PA |
Uniontown Demolition |
Point Marion |
PA |
American Sheet Tin Plate Company |
New Castle |
PA |
Westinghouse Electric Company Bettis Atomic Power Laboratory |
East Pittsburgh |
PA |
American Warming Ventilating Company |
Pittsburgh |
PA |
Pennsylvania Railroad |
Reading |
PA |
Arbuckle And Company |
Pittsburgh |
PA |
Penn Rilton Company |
West Elizabeth |
PA |
Asbestos And Magnesia Manufacturing Company |
Port Kennedy |
PA |
Wise Foods |
Berwick |
PA |
Aurora Furnace |
Wrightsville |
PA |
Baird Insulation Company |
Chambersburg |
PA |
Baldwin Locomotive Works |
Eddystone |
PA |
Rca Plant |
Dunmore |
PA |
Barrett Company |
Frankford |
PA |
Heyl Physicians Supply Co |
Erie |
PA |
Beaver County Light Company |
Fallston |
PA |
United Industrial Supply Co |
Erie |
PA |
Bellevue Stratford Hotel Company |
Philadelphia |
PA |
Trans-lux Theatre Colonial |
Harrisburg |
PA |
Berwind White Coal Mining Company |
Dubois |
PA |
Mechanical Insulation Co |
Lester |
PA |
Bethlehem Steel Corporation |
Lebanon |
PA |
Three Mile Island Nuclear Station |
Middletown |
PA |
Blackwood Colliery |
Blackwood |
PA |
Brand Insulation |
Philadelphia |
PA |
Borg Warner Corporation |
York |
PA |
Wm A Mc Dowell Jr Co |
Philadelphia |
PA |
Brandley Smith |
Philadelphia |
PA |
Refactory Insulation Corp |
Port Kennedy |
PA |
Browning, King Company Building |
Philadelphia |
PA |
Z L Lumber Co |
Sharpsburg |
PA |
Bulletin Building |
Philadelphia |
PA |
King Keystone |
Warren |
PA |
C.h. Bradley And Company |
Pittsburgh |
PA |
Air Products, Inc. |
Pittsburgh |
PA |
Cambria Steel Company |
Marianna |
PA |
Arbogast Bastlan Company |
Allentown |
PA |
Carnegie Illinois Steel Corporation |
Pencoyd |
PA |
Brockway Glass Company |
Brockway |
PA |
Carnegie Steel Company |
Rankin |
PA |
Consumers Gas Company |
Reading |
PA |
Carrie Furnace Company |
Pittsburgh |
PA |
Duquesne Light Company |
Pittsburgh |
PA |
Chamberlain Coal Company |
Port Carbon |
PA |
Glatfelter Ph Co. |
Spring Grove |
PA |
Charles D. Kaier Company Limited |
Mahoney City |
PA |
Hydro-blast Corporation |
Burnham |
PA |
Chickies Iron Company |
Chickies |
PA |
Lewis Foundry And Machine |
Groveton |
PA |
City Of Pittsburgh Department Of Charities |
Marshalsea |
PA |
Metropolitan Edison Co.- Portland Generating Station |
Portland |
PA |
Coal Brook Mine |
Carbondale |
PA |
Pangborn Corporation |
Homestead |
PA |
Colonial Steel Company |
Pittsburgh |
PA |
Petroleum Iron Works |
Sharon |
PA |
Conemaugh Valley Memorial Hospital |
Johnstown |
PA |
Quaker State Oil Refinery |
Emlenton |
PA |
Consolidation Coal Company |
Jenner |
PA |
Sun Refining Marketing Co. |
Philadelphia |
PA |
Coxe Brothers And Company |
Drifton |
PA |
Union Steel Casting |
Pittsburgh |
PA |
Cross Creek Coal Company |
Drifton |
PA |
Westinghouse Electric Manufacturing Co. |
East Pittsburgh |
PA |
D. Lutz Son Brewing Company |
Allegheny |
PA |
Certainteed |
Ambler |
PA |
Danlevy Packing Company |
East Liberty |
PA |
Philadelphia Naval Shipyard |
Uss Washington |
PA |
Delaware And Hudson Company |
Olyphant |
PA |
Bethlehem Steel Corporation Homer Research Labs |
Bethlehem |
PA |
Delaware Station |
Philadelphia |
PA |
Extrusion Die Makers |
Murrysville |
PA |
Diamond Mines |
Scranton |
PA |
Kutz Engineering |
Pittsburgh |
PA |
Dolph Coal Company |
Winton |
PA |
National Steel Service Center, Inc. |
New Castle |
PA |
Drexel Institute |
Philadelphia |
PA |
Rochez Brothers Supply Company |
Braddock |
PA |
Duquesne Light Company |
Springdale |
PA |
United States Steel Corporation |
Braddock |
PA |
E.l. Rothschild Building |
Philadelphia |
PA |
Gulf Oil Refinery |
Philadelphia |
PA |
East Lehigh Colliery |
Tamaqua |
PA |
Fairless Works Us Steel |
Fairless |
PA |
Edensburg Power |
Ebensburg |
PA |
Oil City Glass Co Division Natl Can |
Oil City |
PA |
Edison International |
Homer City |
PA |
Koppel Steel Company |
Ambridge |
PA |
Elk Tanning Company |
Coudersport |
PA |
Congoleum Co. |
Marcus Hook |
PA |
Empire Reeves Steel Corporation |
Pittsburgh |
PA |
Frank Sedar Dept. Store |
Philadelphia |
PA |
Erie Works |
Erie |
PA |
John Wanamakers Dept. Store |
Philadelphia |
PA |
Excelsior Steam Planning Mill |
Mauch Chunk |
PA |
Morrellsville Colliery |
Nantyglo |
PA |
F.f. Geisler And Company |
Pittsburgh |
PA |
Pennsylvania Railroad, Freight Station |
Harrisburg |
PA |
Federal Enameling And Stamping Company |
Mckees Rocks |
PA |
Quaker City Rubber Co |
Wissinoming |
PA |
Flannery Bolt Company |
Bridgeville |
PA |
Union Spring Mfg. Co. |
New Kensington |
PA |
Ft. Pitt Malleable Grey Iron Company |
Mckees Rocks |
PA |
William Cramp And Sons |
Philadelphia |
PA |
Franklin Sugar Refining Company |
Philadelphia |
PA |
Beryllium Corp |
Hazelton |
PA |
Garland Brothers |
Pittsburgh |
PA |
Bethlehem Steel Corporation |
Steelton |
PA |
General Electric Company, Lamp Department |
Bridgeville |
PA |
Hostetter Supply Co. |
York |
PA |
George A. Fuller Contracting Company |
Philadelphia |
PA |
Pennsylvania Power Co. |
Shippingport |
PA |
Girard Estate |
Philadelphia |
PA |
Wheeling Pittsburgh Steel |
Monessen |
PA |
Glen Alden Coal Company, Maxwell Colliery |
Scranton |
PA |
Williamsgrove Clay Products |
Bigler |
PA |
Griswold Worsted Company |
Darby |
PA |
Lebanon, Wernersville State Hospital |
Wernersville |
PA |
H.k. Porter And Company |
Pittsburgh |
PA |
A T T |
Wayne |
PA |
H.c. Frick Coke Company |
United Sta |
PA |
Athos Steel Mill |
Philadelphia |
PA |
H.h. Robertson Company |
Ambridge |
PA |
Bp Oil |
Philadelphia |
PA |
Harbison-walker Refractories Company |
Pittsburgh |
PA |
Clearfield Bank |
Philadelphia |
PA |
Hartman Steel Company |
Beaver Falls |
PA |
Delaware Valley Hospital |
Langhorne |
PA |
Heintz Manufacturing Company |
Philadelphia |
PA |
Felins Meat Packing |
Philadelphia |
PA |
Hershey Foods Corporation |
Hershey |
PA |
Germantown Jewish Center |
Philadelphia |
PA |
Homeopathic Hospital |
Pittsburgh |
PA |
House Of Good Shepard |
Reading |
PA |
Hoopes And Townsend |
Ft. Washington |
PA |
Keasby Mattison |
Ambler |
PA |
Hugh Mcinnes Rebecca Paper Mill |
Bridgeport |
PA |
Longstreth Elementary School 57th Willow Avenue |
Philadelphia |
PA |
Independent Brewing Company Of Pittsburgh |
Pittsburgh |
PA |
Muhlenberg High School |
Philadelphia |
PA |
International Motor Company |
East Penn Junction |
PA |
Pennsylvania Railroad |
Reading |
PA |
Island Petroleum Company |
Neville Island |
PA |
Philadelphia Electric Company Delaware Generating Station |
Philadelphia |
PA |
J.w. Arrott |
Pittsburgh |
PA |
Pollock School Welsh Road |
Philadelphia |
PA |
J.h. And C.k. Eagle |
Shamokin |
PA |
Saint Joe`s Lead |
Monacca |
PA |
Jameson Coal And Coke Company |
Greensburg |
PA |
Spectrum |
Philadelphia |
PA |
Jefferson Clearfield Coal Iron Company |
Punxsutawney |
PA |
Thomas Jefferson Hospital |
Philadelphia |
PA |
John A. Rigg |
Lebanon |
PA |
University Of Pennsylvania Maloney Building Room 636 |
Philadelphia |
PA |
John Zimmermann And Sons |
Philadelphia |
PA |
Us Mint |
Philadelphia |
PA |
Joseph And Thropp |
Earlston |
PA |
West Philadelphia City High School 36th Filbert Streets |
Philadelphia |
PA |
Kelly And Ludwig |
Philadelphia |
PA |
Abbotts Dairy |
Belleville |
PA |
Keystone Roofing Company |
York |
PA |
Aliquippa Works Truck Station 103 |
Aliquippa |
PA |
Koppers Company |
Josephtown |
PA |
Allied Chemical Dye Corporation |
Frankford |
PA |
Lackawanna And Wyoming Valley Railway Company |
Scranton |
PA |
Argyl Mfg Co Pen Argyl |
Pen Argyl |
PA |
Lance Colliery #11 |
Plymouth |
PA |
Atlantic Refining Co North Gate Harry Yust |
Philadelphia |
PA |
Leamy Home Mount Airy |
Philadelphia |
PA |
Atlantic Refining Co Tanks Nbr 1264 1265 |
Philadelphia |
PA |
Lehigh And Wilkes Barre Coal Company, Colliery #4 |
Audenried |
PA |
Baltimore And Ohio Railroad Company Division Sk Section A |
New Castle |
PA |
Lehigh Coal And Navigation Company |
Hauto |
PA |
Bethlehem Steel Co Central Boilers Dept |
Steelton |
PA |
Lehigh Portland Cement Company |
Allentown |
PA |
Bethlehem Steel Company Whl Plt Brick Storage Stop 242 |
Johnstown |
PA |
Lehigh Valley Coal Company |
Jeansville |
PA |
Caterpillar Tractor Company Bldg. B |
York |
PA |
Lehigh Valley Coal Company |
Jeansville, Hazelton |
PA |
Closure Plant Bldg 13-d Flr Plt Bldg 201-b |
Lancaster |
PA |
Liggett And Myers Tobacco Company |
Philadelphia |
PA |
Corning Glass Works Bradford Plant |
Bradford |
PA |
Lockhart Iron And Steel Company |
Mckees Rocks |
PA |
Duquesne Light Co Elrama Power Plant Storeroom |
Elrama |
PA |
Lucy Furnaces |
Pittsburgh |
PA |
Erie Lackawanna Railroad Team Track |
Kingston |
PA |
Mabel Furnace |
Sharpsville |
PA |
Freeport Terminal Inc Liquid Bulk Terminal |
Freeport |
PA |
Manhattan Slate Company |
Slatington |
PA |
Gulf Oil Corp Gate #24 |
Philadelphia |
PA |
Maryland Coal Company |
Tuscarora |
PA |
H. J. Heinz Co Pgh Plumbing Department |
Pittsburgh |
PA |
Mc Daniel And Harvey |
Philadelphia |
PA |
Hilton Hotel |
Mckees Rocks |
PA |
Mcgrew Parkinson And Company |
Monongahela |
PA |
Keppars Co |
Petrolia |
PA |
Megargee Paper Mills |
Tullytown |
PA |
Koppers Company Dylite Plant |
Kobuta |
PA |
Mercy Hospital |
Altoona |
PA |
Koppers Company Tar Products Division |
New Norristown |
PA |
Midvale Heppenstall Company |
Nicetown, Philadelphia |
PA |
Lancaster Closure Plant |
Lancaster |
PA |
Mill Creek Coal Company |
Delano |
PA |
South Pittsburgh Water Company E.h. Aldrich Treatment Complex |
Elrama |
PA |
Mahoningtown Shops |
New Castle |
PA |
Mary Wood College Novitiate Bldg |
Scranton |
PA |
Monongahela Melting Company |
Altoona |
PA |
Metropolitan Edison Co Portland Generating Station Unit #1 |
Portland |
PA |
Mount Sinai Hospital |
Philadelphia |
PA |
Miseracordia Student Union Dorms |
Kingston |
PA |
New Jersey And Pennsylvania Traction Company |
Yardley |
PA |
National Lead Co Bldg #30 |
Philadelphia |
PA |
National Gypsum Company |
Milton |
PA |
New Secondary School |
Wyalusing |
PA |
National Tube Works Company |
Versailles |
PA |
North Pipe Shop Station 270 |
Aliquippa |
PA |
New Castle Portland Cement Company |
New Castle |
PA |
Penn High School |
Kingston |
PA |
Newton Coal Mining Company |
Pittston |
PA |
Pennsylvania Industrial Chemical Co Jefferson Plant |
West Elizabeth |
PA |
North American Lace Company |
Philadelphia |
PA |
Pennsylvania Power Light Co Montour Steam Elec Station Unit 2 |
Washingtonville |
PA |
Number 8 Bolliery |
Pittston |
PA |
Peoples Natural Gas Company Office Building |
Wilkinsburg |
PA |
Nuttal Works |
Pittsburgh |
PA |
Pittsburgh Coke Chemical Co. |
Neville Island |
PA |
Oliver And Roberts Wire Company |
Pittsburgh |
PA |
Punxsutawney Secondary School |
Punxsutawney |
PA |
Orient Coal And Coke Company |
New Salem |
PA |
Rennepamp Supply Company |
Pittsburgh |
PA |
P.f. Magin And Company, Jones And Laughlin Building |
Pittsburgh |
PA |
S. Lancaster Co Sch Authority New Sr High School |
Quarryville |
PA |
Parkview Court Apartments |
Yeadon |
PA |
South Penn Oil Company |
Rouseville |
PA |
Penn-allen Cement Company |
Near Nazareth |
PA |
Strand Township Monroe Co |
East Stroudsburg |
PA |
Penn Sheraton Hotel |
Philadelphia |
PA |
Tobeyhanna Signal Depot Building 1a-section 4 |
Tobeyhanna |
PA |
Pennsylvania Malleable Company |
Mckees Rocks |
PA |
U. S. Steel Corporation |
Fairless |
PA |
Pennsylvania Electric Company; New York State Electric And Gas Company |
Homer City |
PA |
U. S. Steel Corporation Clairton Coke Coal Chemical Works |
Clairton |
PA |
Pennsylvania Coal Company |
Sebastopol |
PA |
U. S. Steel Corporation Emrg Hosp Homestead District Works |
Munhall |
PA |
Pennsylvania Power Company |
New Castle |
PA |
U. S. Steel Corporation Rankin Works #2 Turbo Blower |
Rankin |
PA |
Pennsylvania Railroad Company |
South Altoona |
PA |
United Steel Corporation Duquesne Works |
Duquesne |
PA |
Pennsylvania Training School |
Morganza |
PA |
Vitro **re Metals |
Canonsburg |
PA |
Peoples Incandescent Light And Power Company |
Meadville |
PA |
West Penn Power Co Armstrong Station Near Kittanning, Pa. |
Reesedale |
PA |
Peters Packing Company |
Keesport |
PA |
Westinghouse Ridge St Warehouse |
Sharon |
PA |
Philadelphia And Reading Railway |
Philadelphia |
PA |
Westinghouse Electric Company Atomic Power Division Forest Hills |
Pittsburgh |
PA |
Philadelphia Coke Company |
Philadelphia |
PA |
William J. Mimm Lancaster Floor Plant |
Lancaster |
PA |
Philadelphia Protectory For Boys |
Phoenixville |
PA |
Baltimore And Ohio Railroad Company |
New Castle |
PA |
Phoenix Iron And Steel Company |
Chester |
PA |
Koppers Company |
Kobuta |
PA |
Pittsburgh And Butler Street Railway Company |
Renfrew, Butler County |
PA |
Pittsburgh Railways Company, Brunots Island |
Pittsburgh |
PA |
Pittsburgh Buffalo Company |
Marianna |
PA |
Pittsburgh Plate Glass Company |
Tarentum |
PA |
Pittsburgh Steel Products Company |
Allenport |
PA |
Pottsville Water Company |
Pottsville |
PA |
Providence Hospital |
Beaver Falls |
PA |
R. Hecksher And Sons |
Philadelphia |
PA |
Raystown Water Power Company |
Huntington |
PA |
Reliance Cement Company |
Coplay |
PA |
Richmond Works |
Philadelphia |
PA |
Robinson And Wallace |
Philadelphia |
PA |
Rohm And Haas Company, West Washington Square |
Philadelphia |
PA |
S. Ewart And Company |
Pittsburgh |
PA |
Sayre Electric Company |
Sayre |
PA |
Schuylkill Station, Christy St. |
Philadelphia |
PA |
Scranton High School |
Scranton |
PA |
Scranton Lace Curtain Company |
Scranton |
PA |
Sharpsville Furnace Company |
Sharpsville |
PA |
Sherwood Refining Company |
Warren |
PA |
Simpson And Watkins |
Wyoming |
PA |
South Hills High School |
Pittsburgh |
PA |
Acme Hardesty Industries |
Philadelphia |
PA |
Southwark Mills Company |
Philadelphia |
PA |
Atlantic Metals Corporation |
Philadelphia |
PA |
Springdale Power Station |
Springdale |
PA |
Bethlehem Steel Company |
Lebanon |
PA |
Standard Ice Manufacturing Company |
Philadelphia |
PA |
Bryton Chemical Company |
Trainor |
PA |
Stanley G. Flagg And Company |
Pottstown |
PA |
Columbia Metals Company |
Columbia |
PA |
Sterling Silk Glove Company |
Bangor |
PA |
Dixie Cup |
Easton |
PA |
Sun Refinery And Marketing |
Philadelphia |
PA |
Eastern Foundry Company |
Hovertown |
PA |
Susquehanna Silk Mills |
Sunbury |
PA |
Freeport Brick Company |
Freeport |
PA |
Teledyne, Incorporated |
Waynesboro |
PA |
Green Bag Cement |
Neville Island |
PA |
Thomas Iron Company |
Hellerstown |
PA |
Inland Products, Incorporated |
Pitsburgh |
PA |
Tosco Refining Company |
Trainer |
PA |
Jones Laughlin Steel Company |
Pittsburgh |
PA |
Tyler Tube And Pipe Company |
Washington |
PA |
M Miller Spring Mfg Co |
Pittsburgh |
PA |
Union Spring Manufacturing Company |
New Kensington |
PA |
Meata Machine Co |
New Castle |
PA |
United States Asbestos, Division Of Raybestos Manhattan Incorporated |
Manheim |
PA |
National Crucible Company |
Philadelphia |
PA |
United States Steel Corporation |
Neville Island |
PA |
Orr Sembower Inc |
Reading |
PA |
Us Navy Yard |
Philadelphia |
PA |
Philadelphia Electric Cor |
Philadelphia |
PA |
Van Horn Ely |
New Brighton |
PA |
Pittsburgh Plate Glass |
Creighton |
PA |
Vulcan Detinning Company |
Neville Island |
PA |
Republic Steel Corporation |
West Newton |
PA |
W.j. Hollis |
Reading |
PA |
Schuylkill Forge Co |
Philadelphia |
PA |
Walker And Kepler |
Philadelphia |
PA |
Superior Zinc Corp |
Bristol |
PA |
Washington Steel And Ordinance Company |
Uniontown |
PA |
U S Bureau Of Mines |
Schuykill Haven |
PA |
Weinberg Louis And Marion |
Philadelphia |
PA |
Universal Atlas Cement |
Universal |
PA |
West Pennsylvania Power Company, Mitchell Power Plant |
Courtney |
PA |
Westinghouse Air Brake |
Wilmerding |
PA |
Western State Psychiatric Hospital |
Pittsburgh |
PA |
Woodings Verona Tool Works |
Verona |
PA |
Westinghouse Electric Corp |
Derry |
PA |
Aluminum Smelting Corporation |
Philadelphia |
PA |
Westmoreland Paper Company |
West Newton |
PA |
Berwin White Coal Company |
Windber |
PA |
Wilkes Barre Company |
Wilkes Barre |
PA |
Buick Motor Division |
Philadelphia |
PA |
Wilputte Coke Oven, Division Of Allied Chemical Corporation |
Philadelphia |
PA |
Doehler-jarvis Division, National Lead Industries, Incorporated |
Pottstown |
PA |
William Krause And Sons Cement Company |
Martins Creek |
PA |
Freebrook Corporation |
Kittanning |
PA |
William Whitaker And Sons |
Philadelphia |
PA |
J.w. Ivory Company |
Philadelphia |
PA |
York Corporation |
York |
PA |
Lorenz Sons |
Philadelphia |
PA |
United States Steel |
Fairless Hills |
PA |
New Jersey Zinc Company |
Friedensville |
PA |
Charmi |
Tuntannock |
PA |
Pine Township Coal Company |
Heilwood |
PA |
Goodyear Tire And Rubber Company |
Conshohocken |
PA |
S.f. Whitman Son |
Philadelphia |
PA |
Bethlehem Steel Corporation |
Homestead |
PA |
S.s. Richfield |
Chester |
PA |
Catalytic, Incorporated |
Philadelphia |
PA |
Talco Metals Company |
Philadelphia |
PA |
Des Moines Steel |
Pittsburgh |
PA |
Vertal Division |
Eddystone |
PA |
Universal Cyclops Steel Mill |
Titusville |
PA |
Bethlehem Steel |
Ebdenburg |
PA |
E.g. Budd Company |
Philadelphia |
PA |
Michael Flynn |
Philadelphia |
PA |
Ltv Steel |
Ambridge |
PA |
Pittsburgh Plate Glass Co |
Ford City |
PA |
Cia Panamena De Fuerza Y Luz |
Panama City |
PA |
Swindell-dressler Company |
Pittsburgh |
PA |
Peach Bottom Nuclear Plant |
York County |
PA |
Harbison-walker Refr. Co. |
Pittsburgh |
PA |
Allegheny Ludlum Steel Corporation |
Brackenridge |
PA |
Khulna Newsprint Mill |
Khulna |
PA |
Westinghouse Electric Manufacturing Co. East Pittsburgh Works |
East Pittsburgh |
PA |
Delaware County Incinerat |
Chester |
PA |
Pennsylvania Power Light Co. (a/k/a Phoenix Utility) Walnut Steam Heat Station |
Harrisburg |
PA |
Continental Oil Co |
Chester |
PA |
Climax Molybdenum Company |
Langeloth / Burgettstown |
PA |
Klur Frank Co |
Pittsburgh |
PA |
National Tube Company (a/k/a U.s. Steel) Central Boiler House |
Mckeesport |
PA |
United Engr Foundry Co |
Pittsburgh |
PA |
Synthane-taylor Corp (a/k/a Taylor Fibre) |
Norristown |
PA |
A And A |
Philadephia |
PA |
International Shoe Company Frankford Tannery |
Philadelphia |
PA |
Blumenthal Brothers Choco |
Philadelphia |
PA |
U.s. Government Suppy Depot Quatermasters |
Philadelphia |
PA |
Combustion Equipment Serv |
Oreland |
PA |
Pennsylvania Electric Keystone Generating Station |
Plumcreek |
PA |
E Bergendahl Co |
Philadephia |
PA |
Paul W. Anderson |
Stroudsburg |
PA |
Florig Equipment Co |
Conshohecken |
PA |
Hellwig Silk Dying Co Delaware Ave Howell St. |
Wissinoming / Philadelphia |
PA |
Grimme Combustion Inc Don |
Philadelphia |
PA |
Banks Morton |
Pittsburgh |
PA |
Keenan Co |
Philadelphia |
PA |
Frank Samuels (ce Minerals) |
Valley Forge |
PA |
Mcconovay And Torley Corp |
Pittsburgh |
PA |
Keplers Fuel Company |
Easton |
PA |
O Amos Co Div Mcdonough C |
Philadelphia |
PA |
Philadelphia, City Of |
Philadelphia |
PA |
Philadelphia Gear Works |
King Of Prussia |
PA |
Tynan Incinerator-dela City In |
Chester Township |
PA |
Proctor And Schwartz Inc |
Philadelphia |
PA |
Cove |
Chester |
PA |
St Lukes Hospital |
Bethlehem |
PA |
Northern Light (t-ak-284) |
Chester |
PA |
United Engr And Fdry Co |
Vandergrift |
PA |
3 Mile Island |
Middletown |
PA |
Westinghouse Electric Cor |
Lester |
PA |
Appleby Brothers Whittaker |
Harrisburg |
PA |
Roch Pittsburghh Coal |
Homer City |
PA |
Bethlehem Steel Company |
Bethlehem |
PA |
Heppenstall |
Pittsburgh |
PA |
Catalytic Construction Company |
Philadelphia |
PA |
Bethlehem Steel Corporation |
Bethlehem |
PA |
E. Keeler Company |
Williamsport |
PA |
Penn Central |
Altoona |
PA |
George V Hamilton Inc. |
Mckees Rock |
PA |
Pennsylvania Turnpike |
Harrisburg |
PA |
Homer City Power Plant |
Homer City |
PA |
American Bridge |
Clairton |
PA |
Loftus Engineering Corporation |
Pittsburgh |
PA |
Chicago Bridge Iron Co. |
Greenville |
PA |
Philadelphia Electric |
Sanatoga |
PA |
Ferro Corporation |
Hazelton |
PA |
Portland Cement Co. |
Allentown |
PA |
J L Steel |
Aliquippa |
PA |
Septa Powerhouse |
Philadelphia |
PA |
National Valve |
Johnstown |
PA |
Penn Dairies |
Pottsville |
PA |
Pittsburgh Metal Proc. |
Pittsburgh |
PA |
Westinghouse Electric Company |
Blairsville |
PA |
Union Eletric |
Burgettstown |
PA |
Parsons Insulation |
Wilkes Barre |
PA |
Philadelphia Electric Company Barbados Island |
Barbados Island |
PA |
United Refining Co. |
Warren |
PA |
West Pennsylvania Power Company |
Courtney |
PA |
Alloy Rods Corporation |
York |
PA |
Armstrong Cork Company Digester Liquor Tank |
Lancaster |
PA |
Union Trust Building |
Pittsburgh |
PA |
Conemaugh Power Station Units #1 #2 |
New Florence |
PA |
Grinnell Corporation |
Columbia |
PA |
Philadelphia Electric Company Richmond Facility Fuel Oil Facility |
Philadelphia |
PA |
Us Steel, Usx |
Pittsburgh |
PA |
Armstrong Cork Company Tanks Hood |
Pittsburgh |
PA |
National Can |
Fairless Hills |
PA |
Pennsylvania Power Light |
Shamokin Dam |
PA |
Babcock Wilcox |
West Mayfield |
PA |
Caterpillar Tractor Company Memory Lance |
York |
PA |
Mitchell Power Station |
Monongahela |
PA |
Benjamin Foster Company |
Philadelphia |
PA |
Acme Markets Warehouse |
Reading |
PA |
G.s.a. |
Harrisburg |
PA |
Alloy Rod Plant |
Hanover |
PA |
Pennsylvania Power Light, Brunner Island Plant, Unit #2 |
York Haven |
PA |
Arco Oil Refinery |
Philadelphia |
PA |
R.a. Duckworth, P.g.h. Steamline |
Philadelphia |
PA |
Baldt Anchor Company |
Chester |
PA |
U.s. Steel, Sinter Plant #1 |
Saxonburg |
PA |
Bethlehem Steel Corporation Steel Mill |
Bethlehem |
PA |
Gulf (chevron) Refinery, 1331 Unit |
Philadelphia |
PA |
C.f. Luppold |
Leesport |
PA |
National Lead Co. |
Pittsburgh |
PA |
Container Corporation Of America |
Manayunk |
PA |
Martins Creek, P.p.l. |
Stroudsburg |
PA |
Dravo Shipbuilding |
Neville Island |
PA |
Monsey Products |
Wissahicken |
PA |
Ford And Kendig Company |
Conshohocken |
PA |
American Astronaut |
Chester |
PA |
Greater Pittsburgh Airport |
Pittsburgh |
PA |
Dent |
Philadelphia |
PA |
Hunlock Creek Powerhouse |
Hunlock Creek |
PA |
Pawcatuck |
Chester |
PA |
Kaufman Building |
Pittsburgh |
PA |
1010 Race St. |
Philadelphia |
PA |
Lehigh Engineering |
Bethlehem |
PA |
A.m. Byers Company |
Pittsburgh |
PA |
Merck Chemical |
Danville |
PA |
Adrian Furnace |
Dubois |
PA |
National Steel |
Pittsburgh |
PA |
Alden Coal Company |
Alden |
PA |
Pacor |
Chester |
PA |
Allegheny County Institution District |
Woodville |
PA |
Pennsylvania Steel |
Chester |
PA |
Allegheny Ludlum Steel Corporation |
Brackenridge |
PA |
Pittsburgh Coke Chemical |
Neville Island |
PA |
Allied Chemical |
Newell |
PA |
Ranson Hospital |
Ranson |
PA |
Aluminum Company Of America |
Pittsburgh |
PA |
School District Of Philadelphia |
Philadelphia |
PA |
American Sheet Steel Company |
Pittsburgh |
PA |
St. Huberts Convent |
Philadelphia |
PA |
American Bank Note Company |
Philadelphia |
PA |
Syntex Corporation |
Allentown |
PA |
American Engineering Company |
Philadelphia |
PA |
Uniontown Hospital |
Uniontown |
PA |
American Sheet Tin Plate Company |
New Kensington |
PA |
Westinghouse Bettis |
West Mifflin |
PA |
American Warming Ventilating Company |
Altoona |
PA |
U.s. Steel/usx (christy Park) |
Mckeesport |
PA |
Arbuckle, Ryan Company, Incorporated |
Pittsburgh |
PA |
Greenville Steel Car Company Plant |
Greenville |
PA |
Asbestos, Shingle, Slate And Sheathing Company |
Ambler |
PA |
Owens Corning Fiberglas Corp |
Berwyn |
PA |
B.f. Goodrich Company |
Oaks |
PA |
Philadelphia Electric Company |
Chester |
PA |
Ball Engine Company |
Erie |
PA |
International Boiler Works |
E Stroudsburg |
PA |
Barrett Division Allied Chemical And Dye Corporation |
Frankford |
PA |
Hubbs Howe Co |
Erie |
PA |
Beaver Falls Medical Center |
Beaver Falls |
PA |
Motor Coils Mfg Co |
Evans City |
PA |
Elliott Turbomachinery Company, Incorporated |
Jeannette |
PA |
U G I Corp |
Harrisburg |
PA |
Berwind White Coal Mining Company |
Dunlo |
PA |
Penns Valley Insulation |
Lester |
PA |
Bethlehem Steel Corporation |
Redington |
PA |
Mackintosh Hemphill |
Midland |
PA |
Blackwood Colliery |
Orwigsburg |
PA |
Brunswick Asbestos Co Inc |
Philadelphia |
PA |
Orion Power Midwest, Llc |
Elrama |
PA |
American Steel |
Pittsburgh |
PA |
Breading Paperboard Corporation |
Sinking Spring |
PA |
Frank Roberts Sons Inc |
Punxsutawney |
PA |
Brunots Island |
Pittsburgh |
PA |
Penn Electric Co |
Shawville |
PA |
Bureau Of Mines |
Pittsburgh |
PA |
Struthers Scientific |
Warren |
PA |
C. Howard Mercy State Hospital |
Pittsburgh |
PA |
Air Reduction Sales Company |
Bethlehem |
PA |
Cambria Steel Company, Office Building |
Johnstown |
PA |
Arco (atlantic Richfield Company) |
Point Breeze |
PA |
Carnegie Illinois Steel Corporation |
Dravosburg |
PA |
Buck Hill Falls Inn |
Buck Hill Falls |
PA |
Carnegie Steel Company |
South Duquesne |
PA |
Container Corporation Of America |
Philadelphia |
PA |
Carson Industrial Development Corporation |
Pittsburgh |
PA |
E.i. Du Pont De Nemours |
Philadelphia |
PA |
Chamberlain Coal Company |
Pottsville |
PA |
Glen Alden Coal |
Ashley |
PA |
Charles E. Langcake |
Philadelphia |
PA |
Hydro-blast Corporation |
Erie |
PA |
Childrens Homeopathic Hospital |
Philadelphia |
PA |
Limbach Company |
Pittsburgh |
PA |
City Of Pittsburgh Mayview Plant |
Pittsburgh |
PA |
Michigan Limestone And Chemical |
Annandale |
PA |
Coalfax Power Station |
Cheswick |
PA |
Pangborn Corporation |
Bethlehem |
PA |
Colonial Steel Company |
Monaca |
PA |
Petroleum Reclamation Company |
Bradford |
PA |
Conestoga Traction Company |
Lancaster |
PA |
Quaker State Oil Refinery |
Farmers Vall |
PA |
Consumers Light Company |
Plymouth |
PA |
Tate Jones Company |
Beaver Falls |
PA |
Coxe Traveling Grate Company |
Port Carbon |
PA |
United Engineering Foundry Company |
Titusville |
PA |
Cross Creek Coal Company |
Deringer |
PA |
Westinghouse Electric Manufacturing Co. |
Irwin |
PA |
D. Lutz Son Brewing Company |
Allegheny City |
PA |
Conrail/penn Central/new York Central/pennsylv |
Not Provided |
PA |
Danville And Sunbury Street Railway Company |
Danville |
PA |
Pittsburgh Des Moines Steel |
Pittsburgh |
PA |
Delaware And Hudson Company |
Archibald |
PA |
Bigelow Apartments |
Pittsburgh |
PA |
Delaware Storage And Freezing Company |
Philadelphia |
PA |
Firestone Tire Rubber Company |
Philadelphia |
PA |
Diamond National Bank Building |
Pittsburgh |
PA |
Latrobe Forge Spring, Inc. |
Latrobe |
PA |
Dolph Coal Company |
Pickville |
PA |
New Jersey Zinc Company West Plant Slab Z |
Palmerton |
PA |
Driggs Seabury Ordnance Company |
Sharon |
PA |
Rohm Haas Company |
Bristol |
PA |
Duquesne Light Company, 30th St. Station |
Pittsburgh |
PA |
United States Steel Corporation |
Fairless |
PA |
East Liberty Home Dressed Meat Company |
Pittsburgh |
PA |
Lancaster Malleable Castings Co |
Lancaster |
PA |
East Liberty |
Pittsburgh |
PA |
Foote Mineral |
Exton |
PA |
Edgar Thompson Steel Works |
Bessemer |
PA |
Phoenix Steel Corporation |
Phoenixville |
PA |
Edison Light And Power Company |
York |
PA |
Koppel Steel Company |
Beaver Falls |
PA |
Elk Tanning Company |
Curwensville |
PA |
Cramp Shipbuilding |
Philadelphia |
PA |
Empire Iron And Steel Company |
Macungie |
PA |
Frankfort High School |
Philadelphia |
PA |
Es Magee Hospital |
Pittsburgh |
PA |
Jones Laughlin Steel |
Hazelwood |
PA |
Exchange Building |
Philadelphia |
PA |
National Biscuit Plant |
Pittsburg |
PA |
F.g. Vogt And Sons |
Philadelphia |
PA |
Pennsylvania Sugar Co |
Philadelphia |
PA |
Federal Paper Board Company, Incorporated, Paper Board Division |
Reading |
PA |
Reading Iron Co |
Reading |
PA |
Fleetwood Metal Body Company |
Fleetwood |
PA |
United Gas Improvement Co Philadelphia Gas Works |
Philadelphia |
PA |
Ft. Pitt Malleable Iron Company |
Mckees Rocks |
PA |
William Wharton |
Easton |
PA |
Franklin Works |
Johnstown |
PA |
Beryllium Corp |
Reading |
PA |
Garland Nut And Rivet Company |
West Pittsburgh |
PA |
Bremans Express Pittsburgh Terminal |
Pittsburgh |
PA |
General Electric Company, Transportation Systems Division |
Erie |
PA |
Howmet Corp. |
Lancaster |
PA |
George Hasley And Sons |
Allegheny |
PA |
Philadelphia Electric Co. |
Philadelphia |
PA |
Girard Estate Peoples Bank |
Philadelphia |
PA |
Zedmark, Inc. |
Valencia |
PA |
Globe Dye Works Company |
Philadelphia |
PA |
Ada Lewis Junior High School, Tulpehocken And Ardleigh Stree |
Philadelphia |
PA |
Grocers Sugar House |
Philadelphia |
PA |
Lenhardt Hall, Millersville University |
Millersville |
PA |
H.k. Porter Company |
Pittsburgh |
PA |
Academy Of Music Broad Street |
Philadelphia |
PA |
H.c. Frick Coke Company |
Westmoreland County |
PA |
B F Goodrich Tire Company |
Oakes |
PA |
H.k. Crimming Tradesman Grain Elevator And Storage Company |
Philadelphia |
PA |
Bp Oil |
Trainer |
PA |
Harbison-walker Refractories Company |
Woodland |
PA |
Clearfield High School |
Clearfield |
PA |
Harvey And Collins |
Austin |
PA |
Depaco Paper Company |
Downington |
PA |
Helfenstein, Lewis And Green |
Philadelphia |
PA |
Firestone Tire Rubber |
Pottstown |
PA |
Hestonville Mantua Fairmount Passenger Railroad Company |
Philadelphia |
PA |
Gimbels Store |
Philadelphia |
PA |
Homeopathic Hospital For The Insane |
East Allentown |
PA |
Huffman Industries |
Sinking Springs |
PA |
Hoopes And Townsend Company |
Ft. Washington |
PA |
Keebler Biscuits Company |
Philadelphia |
PA |
Hughes And Gauthorp Company |
Pittsburgh |
PA |
Lormack Corporation |
Schellburg |
PA |
Independent Bridge Company |
Pittsburgh |
PA |
Municipal Services Building |
Philadelphia |
PA |
International Paper Company |
York Haven |
PA |
Pennsylvania Academy Of Fine Arts Broad Street |
Philadelphia |
PA |
Island Petroleum Company, Neville Island |
Pittsburgh |
PA |
Philadelphia Electric Company Peco Building 23rd Market Streets |
Philadelphia |
PA |
J.w. Koch Company |
Harrisburg |
PA |
Post Office 30th Street |
Philadelphia |
PA |
J.h. And C.k. Eagle Company |
Shamokin |
PA |
Saint Joseph`s School |
Norristown |
PA |
Jameson Coal And Coke Company |
Crab Tree |
PA |
Spirax-sarco Incorporated |
Allentown |
PA |
Jefferson Clearfield Coal Iron Company |
Ernest |
PA |
Tilden Junior High 66th Elmwood |
Philadelphia |
PA |
John B. Stetson |
Philadelphia |
PA |
University Of Pennsylvania Medical Laboratory |
Philadelphia |
PA |
Johnson And Company |
Johnstown |
PA |
Us Mint 4th Arch Street |
Philadelphia |
PA |
Joseph Horne And Company |
Pittsburgh |
PA |
Wilson Senior High School |
Sinking Springs |
PA |
Kelly Wooden Ware Company |
Waterford |
PA |
Alcoa |
Mckees Rocks |
PA |
Keystone Shaft Mine |
Madison |
PA |
Aliquippa Works Truck Station 27 |
Aliquippa |
PA |
Koppers Company Koppers Building |
Pittsburgh |
PA |
Allied Chemical Dye Corporation New Phenol Plant |
Philadelphia |
PA |
Lackawanna Coal And Coke Company |
Vintondale |
PA |
Army Reserve Center |
Clearfield |
PA |
Lance Colliery #11 |
Plymouth Junction |
PA |
Atlantic Refining Co North Yard |
Philadelphia |
PA |
Lebanon Blast Furnace Company |
Lebanon |
PA |
Atlantic Refining Co Wax Plant Exp. Heavy Fuel Addn South Yard Near Tank #850 |
Philadelphia |
PA |
Lehigh And Wilkes Barre Coal Company, Hollenback Colliery #2 |
Wilkes Barre |
PA |
Baltimore And Ohio Railroad Company Division Sk Section C |
Dubois |
PA |
Lehigh Coal And Navigation Company |
Philadelphia |
PA |
Bethlehem Steel Co Central Boilers Dept West End Yard |
Steelton |
PA |
Lehigh Portland Cement Company |
Fogelsville |
PA |
Bethlehem Steel Subsidiary Cos. #4 Shop Warehouse Lehigh Division |
Bethlehem |
PA |
Lehigh Valley Coal Company |
Mt Carmel |
PA |
Champion Valley Farm Between Berwick Bloomsburg Pa |
Lime Ridge |
PA |
Leisenring And Company |
Duncott |
PA |
Colt Industries Stainless Steel Alloy Div. |
Midland |
PA |
Liggett Spring And Axle Company |
Monongahela |
PA |
Corning Glass Works Component Plant |
Bradford |
PA |
Locust Spring Colliery |
Locust Gap |
PA |
Duquesne Light Co Frank R. Phillips Power Station |
Wireton |
PA |
Luke Fidler Colliery |
Shamokin |
PA |
Eureka |
Kingston |
PA |
Macaw Brothers |
Norwood |
PA |
G. E. Industrial Tube Plant |
Scranton |
PA |
Marcal Paper Mills, Incorporated |
Philadelphia |
PA |
Gulf Oil Corp Gate 24 Penrose Ave. At Lanier Girard Point |
Philadelphia |
PA |
Maryland Coal Company |
Maryd |
PA |
H. J. Heinz Co Pittsburgh Plumbing Dept |
Pittsburgh |
PA |
Mc Dowell Paper Company |
Manayunk |
PA |
Hilton Hotel Empire Bldg Gateway No 3 |
Mckees Rocks |
PA |
Mcguinnes Company |
Pittsburgh |
PA |
Keystone Generating Station Unit 2 |
Elderton |
PA |
Mellon Bank, Old Uss Building |
Pittsburgh |
PA |
Koppers Company Elastic Division |
Kobuta |
PA |
Merion And Radnor Gas And Electric Company |
Wayne |
PA |
Koppers Company Tar Products Division |
Oil City |
PA |
Midvale Steel And Ordnance Company |
Nicetown |
PA |
Lancaster Floor Plant |
Lancaster |
PA |
Mill Creek Coal Company |
Vulcan |
PA |
Lovekin Trageser Div |
Philadelphia |
PA |
Monessen Works |
Monessen |
PA |