NATIONAL OILWELL

Class [7]
Machinery Products

Power-operated pumps and pump equipment for use in oilfield equipment and service; including triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; oilwell drilling machinery and parts therefor; including drawworks, torque converters, rotaries, swivels, travelling blocks, hook blocks, crown blocks, drill pipes, drill strings, tubulars, pedestal cranes, jacking and drilling manifolds; power-operated oil wellhead and well completion equipment; including wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, throughbore trees, production manifolds and injection manifolds; valves for use with oilfield drilling and production machinery; including gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oilfield drilling and production machinery; including ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems in Class 7.