U.S. federal trademark · Serial No. 71552643 · Reg. No. 0562043
DIRECTIONAL DRILLING, CORE ORIENTING AND OIL WELL SURVEYS-NAMELY, OIL WELL TEMPERATURE SURVEYS, SURFACE CONTROLLED MAGNETIC WELL SURVEYS, WATER ENTRY SURVEYS, AND SURVEYS TO ASCERTAIN INCLINATION OF AND DIRECTION OF INCLINATION OF WELL BORES
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