71520074
Apr 2, 1947
Jun 21, 1949
PIPE UNIONS, THREAD PROTECTORS FOR UNIONS, CLAMP HANDLES FOR VALVES, PLUG VALVES, GATE VALVES, FUSIBLE BOILER PLUGS, STEAM GAUGE PROTECTORS, SWIVEL PIPE JOINTS, ROTARY SWIVEL FLEXIBLE PIPE CONNECTIONS, LINE BLINDS FOR ISOLATING ONE PART OF A PIPE LINE FROM ANOTHER, COMPOUNDING PLUGS AND BLANKING PLUGS FOR PROVIDING CLOSURES FOR DISCONNECTED PIPE UNIONS
Vehicles