71619346
Sep 28, 1951
Mar 3, 1953
VALVES FOR USE IN WATER, STEAM, OIL, AND GAS PIPE LINES, COCKS, PIPE-FITTINGS, PIPE UNIONS, NOZZLES FOR COMPRESSED AIR, OIL AND SAND-BLAST, POP-VALVE MUFFLERS, SIGHT FEED-VALVES, LOW WATER ALARMS FOR STEAM BOILERS AND FUSIBLE PLUGS FOR LOW WATER ALARMS FOR STEAM BOILERS
Firearms