HMH

Mechanical drilling tools and drilling installations; mechanical drilling tools for mining plants; drilling rigs; drilling towers, hoists, hoisting towers, winches, shafts, gears and motorized drives for use in rotary drilling installations for drilling on land and at sea; machines for rotating a pi

Pressure control equipment, namely, blowout preventers and well tools, namely, annular diverters, accumulators, and pulsation dampeners; computer hardware and recorded software for blowout preventer control systems and operator interface for use in the oil and gas industries; downloadable software f

Oil field services, namely, repair and maintenance services for oil and gas wells; installation, repair and maintenance of oil well blowout preventers and parts therefore; rental of oil well drilling and production equipment; installation, operation, repair, and maintenance of drilling rig equipment