U.S. federal trademark · Serial No. 72233740 · Reg. No. 0822328
MOTOR OPERATED SYSTEM CONSISTING OF PLATFORM AND CAGE OPERATING ON GUIDE RAILS EQUIPPED WITH ROLLERS AND TUBES FOR SUPPLYING AIR AND WATER FOR USE IN TRANSPORTING AND MAINTAINING PERSONNEL AND EQUIPMENT IN VERTICAL OR INCLINED SHAFTS WHILE DRILLING, CLEANING, BLASTING, ETC
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