1. Franklin Institute Research Laboratories, Philadelphia, Pa.
2. Pratt & Whitney Aircraft, East Hartford, Conn.
3. General Electric Corp., Schenectady, N. Y.
4. Douglas Missile and Space Systems Division, McDonnel Douglas Corp., Santa Monica, Calif.
5. Applied Research Laboratory, U. S. Steel Corp., Monroeville, Pa.
6. Research Laboratory, Climax Molybdenum Company of Michigan, an AMAX subsidiary, Ann Arbor, Mich.
7. Pennsatt Chemicals Corp., Technological Center, King of Prussia, Pa.
8. Mobil Research and Development Corporation, Paulsboro, N.J.
9. Midwest Research Institute, Kansas City, Mo.
10. Research Laboratory, SKF Industries, Inc., King of Prussia, Pa.