86763954
Sep 22, 2015
Subsea tree systems comprising an assembly of oil and gas field wellhead machine parts, namely, gate valves, ball valves, check valves, plug valves, globe valves, high-pressure choke pumps for use in oil or gas well hydraulic fracturing operations, pipe fittings, flanges and hydraulic valve actuators
MachinerySubsea tree systems comprising oil and gas well Christmas trees in the nature of an assembly of valves, spools, fittings, electric, electronic and optical sensors and acoustic, electronic and electric meters that control the flow of oil and gas out of a well and oil and gas well downhole survey and measurement equipment
Electrical and Scientific Apparatus