BLOVENTOR
Automatic shut-down devices for fluid and gas flow in conduits, namely, electronic, pneumatic or hydraulic control valves for controlling gas or fluids; mechanical devices used to close tubular members positioned subsurface and above surface, namely, automatic valves; emergency shut down device for pipelines, industrial facilities, power plants and oil and gas installations, namely, pump control valves
Abandoned · July 22, 2005 · 76643455 ·