78197878
Dec 26, 2002
valves and valve actuators, namely hydraulic valve actuators, being parts of safety valves used to control flow in oil, gas, water, and injection wells
Machineryautomatic valves used to control fluid flow, namely, safety valves, electronically controlled valves, hydraulically-controlled valves, electro-hydraulically controlled valves and remotely actuated valves, namely, flow control valves and controlled fluid and gas flow valves, and parts thereof, all of the foregoing being parts for tools and equipment for oil, gas, water, and injection wells
Electrical and Scientific Apparatus