A.O. Smith
A.P. Green
ABT Building Products
Ainsworth Lumber Company
Allegheny Steel Corporation
Allied Signal
American Dade
American Olean Tile
American Optical Corporation
Apache Building Products
Appleton Paper Company
Armstrong World Industries
Arthur Products
ASEA Robotics
AT&T Technology
Atoglas
Babcock & Wilcox
Baker Refractories
Baxter Paramax Systems
Beckman Instruments
Bethlehem Steel
Boeing
Boise Cascade
Boston Dana
Bowater Paper Company
Bridgestone Tire Company
Canterbury Timber Products
Carborundum
Celotex
Comalco Aluminum
Comau Productivity Systems
Congoleum Corporation
Cooper Tire Company
Cyro Industries
Delco Electronics
Delco Remy
Dow Chemical
E. R. Carpenter, Inc.
E.A.R.
E.I. Dupont de NeMours & Co.
Eastman Kodak Company
EG&G Idaho Inc.
Eli Lily Company
Essilor of America, Inc.
Exide
Firestone Industrial Products
Firestone Tire and Rubber
Fisher Guide Division
Fletcher Wood Panels, Limited
Foamex
Ford Motor Company
G.E. Aircraft Engines
Gates Rubber Company
Gemcor
General Electric
General Mills
General Motors
General Tire
Georgia Pacific Corporation
Goodyear
IBM
Ingersoll-Rand Company

Inland Container
Inland Division of GMC
International Paper
Jefferson Smurfit Company
K2 Ski Corporation
Kaiser aluminum
Kelly Springfield Corporation
Learjet Corporation
Libbey-Owens-Ford
Lockheed Missles and space Co.
Logical Systems
LTV Aerospace and Defense
Lucite
Manville Products
Masonite Corporation
Matsushita Industrial Corporation
Medtronic/Promeon
Mitsubishi Rayon
Morton Thiokol, Inc.
National Gypsum
Nihon Denki Glass
Nippon Sheet Glass Co., Ltd.
Olin Brass Company
Owens/Corning Fiberglass
Owens-Illinois
Pelican Spruce Mills
Pillsbury Company
Potlatch
PPG Industries
Procter & Gamble Company
RCA Corporation
Reeves Brothers
Reynolds Metals
Rockwell International
Rogers Corporation
Roseburg Forest Products
Saturn Corporation
Scott Paper Company
Shanghai Dong Yu Materials Co., Ltd.
Shulton Industries
Sierra Pacific Industries
Sola Optical USA, Inc.
Standard Oil
Stanford University
Temple Inland Inc.
The Carborundum Company
Timber Products Company
U.K. Paper Limited
U.S. Steel Corporation
Union Camp Corporation
Uniroyal Goodrich
Unisys Corporation
United Dessicants Gates
United Technologies
USG Interiors, Inc.
Viratec Thin Films, Inc.
Volkswagon of America, Inc.
Westinghouse Electric Corp.
Weyerhaeuser Company
Willamette Industries
William Wrigley Jr. Company
Wood Fiber Industries