73628699
Nov 5, 1986
Feb 23, 1988
WELDING POWDERS; PROTECTIVE GASES FOR WELDING; WELDING PASTES; CHEMICAL ADDITIVES FOR USE IN MANUFACTURING METAL AND METAL ALLOYS
ChemicalsTUBES OF METAL; NON ELECTRIC WIRE OF METAL; WELDING RODS; FILLED WELDING WIRE; WELDING METALS; FOLDED TUBES; WELDED TUBES; METAL ALLOYS
Metal GoodsELECTRODES FOR USE IN ELECTRIC WELDING; WELDING MASKS; WELDING HELMETS; ELECTRICAL RESISTANCE WELDING APPARATUS; HIGH-FREQUENCY WELDING APPARATUS
Electrical and Scientific Apparatus