U.S. federal trademark · Serial No. 73449177 · Reg. No. 1387240
MOBILE WELL DRILLING AND SERVICING RIGS, DRAWWORKS, DERRICKS, MASTS, MAST POLES, CHAIN AND GEAR TRANSMISSIONS, FRICTION CLUTCHES, WINCHES, HOISTS, DRILLING AND CLEAN-OUT SPUDDERS, DRILLING RIGS, TRAVELING BLOCKS, CROWN BLOCKS, [ POWER SUBS, MUD PUMPS, ] AND PARTS THEREOF
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