78852554
Apr 3, 2006
Jul 28, 2009
Tools for mining, asphalt milling, and drilling subterranean formations in the oil, gas, and geothermal industries, namely, power-operated mills, power-operated picks, drill bits and diamond coated drill bit cutting inserts; hydraulic hammers; drill pipe, drill collars, reamers, jars, shock absorbers, turbines, drill motors, repeaters, generators, swivels, and bottom hole assemblies adapted for data telemetry for drilling subterranean formations
Machinery