72450182
Mar 1, 1973
Oct 29, 1974
WELDING RODS; WELDING ELECTRODES; BRAZING AND SOLDERING WIRE AND RODS; FLUXES FOR WELDING, BRAZING AND SOLDERING; LIQUID SURFACE COATINGS FOR SURFACES TO BE WELDED; LIQUID MASKING COMPOUND FOR PROTECTING METAL SURFACES FROM WELDING SPATTER AND HEAT DISCOLORATION; AND A HEAT BARRIER COMPOUND IN THE FORM OF A HEAT-RESISTANT PLASTIC PUTTY
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