72123712
Jul 10, 1961
Aug 18, 1964
Heat Resisting Alloys, Low Alloy Steels for Bearings and Springs, High Strength Alloy Steels, Tool Steels and High Speed Steels, Stainless Steels, Electronic Alloys, ((Nuclear Reactor Materials-Namely, Zircaloy and Zirconium Alloys and Boron Containing Stainless Steels, Hard Facing Alloys, Investment Castings, ))and Special Analysis Alloy
Jewelry