73324557
Aug 20, 1981
Mar 27, 1984
Manually Operated Metal Valves-Namely, Petroleum Valves, Gate Valves, Solid Wedge Gate Valves, Venturi Solid Wedge Gate Valves, Stainless Cast Steel Gate Valves, Cryogenic Valves, Globe Valves, Swing Check Valves, Tilting Disk Check Valves, Slab-Seal Gate Valves, Through Conduit Valves, Fabricated Steel Valves, Interruption Valves, Pressure Valves and Valve Actuators
Metal GoodsValves Operated Automatically by Electric Current Control or by Solenoid
Electrical and Scientific Apparatus