U.S. federal trademark · Serial No. 73351254
CORE ANALYSIS PLUG DRILLS, DEVICES WHICHACCURATELY AND AUTOMATICALLY EXTRACT CYLINDRICAL SAMPLES FROM ROCK AND EARTHEN MATERIALS USING A VA RIETY OF CUTTING FLUID
CORE ANALYSIS PLUG DRILLS, DEVICES WHICHACCURATELY AND AUTOMATICALLY EXTRACT CYLINDRICAL SAMPLES FROM ROCK AND EARTHEN MATERIALS USING A VA RIETY OF CUTTING FLUID
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