1. Franklin Institute Research Laboratories, Philadelphia, Pa.
2. Research Laboratory, SKF Industries, Inc., King of Prussia, Pa.
3. Friction & Lubrication Laboratory, Franklin Institute Research Laboratories, Philadelphia, Pa.
4. Homer Research Laboratory, Bethlehem Steel Co., Bethlehem, Pa.
5. Midwest Research Institute
6. Metallurgical Processing, U. S. Steel Corp., Applied Research Laboratory, Monroeville, Pa.
7. Pennwalt Corp, Technological Center, King of Prussia, Pa.
8. Aero Materials Department, Naval Air Development Center, Johnsville, Warminster, Pa. 18974