78101102
Jan 5, 2002
Feb 4, 2003
Active Trademark
Down hole production and exploration machinery for use in oil, gas, or geothermal wells, namely, [ Drill bits, ] drill pipes, [ drill collars, drill motors, jars, stabilizers, reamers, drill liners and casings, top head drive and swivels, subassemblies and hydraulic hammers ]
Machinery