| A.O. Smith |
Inland Container |
| A.P. Green |
Inland Division of GMC |
| ABT Building Products |
International Paper |
| Ainsworth Lumber Company |
Jefferson Smurfit Company |
| Allegheny Steel Corporation |
K2 Ski Corporation |
| Allied Signal |
Kaiser aluminum |
| American Dade |
Kelly Springfield Corporation |
| American Olean Tile |
Learjet Corporation |
| American Optical Corporation |
Libbey-Owens-Ford |
| Apache Building Products |
Lockheed Missles and space Co. |
| Appleton Paper Company |
Logical Systems |
| Armstrong World Industries |
LTV Aerospace and Defense |
| Arthur Products |
Lucite |
| ASEA Robotics |
Manville Products |
| AT&T Technology |
Masonite Corporation |
| Atoglas |
Matsushita Industrial Corporation |
| Babcock & Wilcox |
Medtronic/Promeon |
| Baker Refractories |
Mitsubishi Rayon |
| Baxter Paramax Systems |
Morton Thiokol, Inc. |
| Beckman Instruments |
National Gypsum |
| Bethlehem Steel |
Nihon Denki Glass |
| Boeing |
Nippon Sheet Glass Co., Ltd. |
| Boise Cascade |
Olin Brass Company |
| Boston Dana |
Owens/Corning Fiberglass |
| Bowater Paper Company |
Owens-Illinois |
| Bridgestone Tire Company |
Pelican Spruce Mills |
| Canterbury Timber Products |
Pillsbury Company |
| Carborundum |
Potlatch |
| Celotex |
PPG Industries |
| Comalco Aluminum |
Procter & Gamble Company |
| Comau Productivity Systems |
RCA Corporation |
| Congoleum Corporation |
Reeves Brothers |
| Cooper Tire Company |
Reynolds Metals |
| Cyro Industries |
Rockwell International |
| Delco Electronics |
Rogers Corporation |
| Delco Remy |
Roseburg Forest Products |
| Dow Chemical |
Saturn Corporation |
| E. R. Carpenter, Inc. |
Scott Paper Company |
| E.A.R. |
Shanghai Dong Yu Materials Co., Ltd. |
| E.I. Dupont de NeMours & Co. |
Shulton Industries |
| Eastman Kodak Company |
Sierra Pacific Industries |
| EG&G Idaho Inc. |
Sola Optical USA, Inc. |
| Eli Lily Company |
Standard Oil |
| Essilor of America, Inc. |
Stanford University |
| Exide |
Temple Inland Inc. |
| Firestone Industrial Products |
The Carborundum Company |
| Firestone Tire and Rubber |
Timber Products Company |
| Fisher Guide Division |
U.K. Paper Limited |
| Fletcher Wood Panels, Limited |
U.S. Steel Corporation |
| Foamex |
Union Camp Corporation |
| Ford Motor Company |
Uniroyal Goodrich |
| G.E. Aircraft Engines |
Unisys Corporation |
| Gates Rubber Company |
United Dessicants Gates |
| Gemcor |
United Technologies |
| General Electric |
USG Interiors, Inc. |
| General Mills |
Viratec Thin Films, Inc. |
| General Motors |
Volkswagon of America, Inc. |
| General Tire |
Westinghouse Electric Corp. |
| Georgia Pacific Corporation |
Weyerhaeuser Company |
| Goodyear |
Willamette Industries |
| IBM |
William Wrigley Jr. Company |
| Ingersoll-Rand Company |
Wood Fiber Industries |