71492035
Nov 23, 1945
Aug 5, 1947
CAST ALLOYS OF COBALT, CHROMIUM, AND TUNGSTEN, IN THE FORMS OF UNFINISHED CASTINGS FOR METAL CUTTING TOOLS OF ALL TYPES AND FOR WEAR-RESISTANT AND HOT-WORK APPLICATIONS-NAMELY, WIRE GUIDES AND HOT EXTRUSION DIES, AND ALSO FOR CONSUMABLE METALLIC WELDING RODS
Jewelry