U.S. federal trademark · Serial No. 74439561 · Reg. No. 2048549
ELECTRONIC APPARATUS FOR MONITORING, SENSING AND MEASURING LIQUID LEVELS, EXCEPT IN THE DESIGN, MANUFACTURE, REPAIR, MAINTENANCE, OPERATION, SERVICE, MONITORING, INSTALLATION OR MODERNIZATION OF ELEVATORS, ESCALATORS, MOVING WALKWAYS AND RELATED PEOPLE-MOVING CARRIERS
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