● Pratt & Whitney Aircraft
● Pratt & Whitney Canada-PWA Turbojet Engines
● General Electric-Aircraft Engines
● Boeing D6-17487
● Bell Helicopter
● Rolls Royce
● TRW
● Allison Gas Turbine Engines
● New United Motors Manufacturing Co.
● Babcock & Wilcox-Nuclear Equipment Division
● United Airline & Boeing specifications for Interior & Exterior Cleaning
● United States Environmental Protection Agency
● Honeywell Engines & Systems
● Martin Maretta Energy System
● Lockheed Missile & Space Company
● Raytheon Missile Systems
● Gooddyear Tire & Rubber Company
