U.S. federal trademark · Serial No. 73526544 · Reg. No. 1295090
COMPUTER PROGRAMMING; SOFTWARE DEVELOPMENT; ENGINEERING, RESEARCH, SURVEILLANCE, AND INSPECTION SERVICES IN THE UNDERGROUND MINE AND QUARRY EXPLORATION FIELD
COMPUTER PROGRAMS RECORDED ON TAPES, CARDS, OR DISCS; COMPUTER PROGRAMS PERMITTING ONE TO EFFECT VENTILATING CALCULATIONS IN UNDERGROUND MINE OR QUARRY EXPLOITATIONS
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