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• B F Goodrich Geon
• Camco Management
• Coca-Cola Bottling Co of Philadelphia
• CoreStates
• Crown Cork & Seal
• D & A Automotive
• Drexel University
• Dominion Energy
• FirstUnion
• Forest Park
• General Electric
• Green Creek Volunteer Fire Dept
• Hammond Lead
• Hankin Properties
• Historic Projects
• IBM (TJ Watson Research Center)
• International Paper Company
• Iron Hill
• Kraft Foods North America
• Lowry Electric Project
• Martin-Marietta
• Merck Pharmaceuticals
• Metal Edge International
• Nabisco Baking Company
• New Hope Flooring Project
• Penn State University
• Pepsi Cola Bottling Company
• Philadelphia U.S. Naval Yard
• Porter Township
• Proctor & Gamble
• Rouse Company Maryland
• Severn Trent Services
• Sunsweet Growers
• University of Pennsylvania
• URL Mutual Pharmaceuticals
• Wachovia Center
• WalMart
• Wheelabrator Technologies, Inc.
• Wrightstown Project
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