73074831
Jan 20, 1976
May 31, 1977
METAL ALLOYS USED FOR WELDING PURPOSES; RESISTANCE WELDING ALLOYS, FORGINGS, CASTINGS, AND BAR-STOCK
Metal GoodsRESISTANCE WELDING ELECTRODES, TIPS, SHANKS, HOLDERS, ADAPTERS, AND ARMS
Electrical and Scientific Apparatus