71678442
Dec 16, 1954
Nov 22, 1955
[ GAS COCKS; RIGID BAR-TYPE HANGERS FOR CONNECTING GAS METERS TO GAS SUPPLY AND SERVICE PIPES; TUBULAR STRAIGHT AND OFFSET TYPE SWIVELS FOR CONNECTING GAS METERS TO RIGID METER BARS; NUTS FOR CONNECTING THE TUBES OF GAS METERS TO METER BAR SWIVELS; ] COMBUSTION CONTROLLING VALVES-NAMELY, BLAST GATES, GATE VALVES, TEMPERATURE CONTROL VALVES, SAFETY SHUT-OFF VALVES, AND SOLENOID VALVES, BUT NOT INCLUDING FUEL VALVES FOR AIRCRAFT ENGINE SYSTEMS; ACCESSORIES FOR OIL BURNER SYSTEMS-NAMELY, PISTON-TYPE RELIEF VALVES, PRESSURE REDUCING AND REGULATING VALVES, AND PRESSURE REGULATORS AND PIPE LINE STRAINERS
Firearms