U.S. federal trademark · Serial No. 71578873 · Reg. No. 0565473
EARTH DRILLING MACHINES [ ; NAMELY, SLIM HOLE DRILLING RIGS, EXPLORATION DRILLING RIGS, CORE DRILLING RIGS, SEISMOGRAPH SHOT HOLE DRILLING RIGS AND WATER WELL DRILLING RIGS; ] AND DRILLING BITS FOR SUCH MACHINES
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