72186843
Feb 17, 1964
Jan 18, 1966
ALL LIGHT METALS, ALL HEAVY METALS, METAL ALLOYS, AND MIXTURES OF METALS AND METAL ALLOYS WITH OXYGEN CONTAINING COMPOUNDS
JewelryHEATING AND WELDING COMPOUNDS FOR METALS, METALLOIDS, CRUCIBLES AND POTS FOR CASTING AND SMELTING, CRUCIBLE LININGS, MOUNTING AND CLAMPING APPARATUS FOR WELDING OPERATIONS, MOLDS AND DEVICES FOR EFFECTING ALUMINOTHERMIC OPERATIONS, PREHEATERS, AND VAPORIZERS
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