U.S. federal trademark · Serial No. 72157755 · Reg. No. 0760654
ELECTRICAL RECORDING AND INDICATING INSTRUMENTS-NAMELY, VOLTMETERS, AMMETERS, VOLT-AMMETERS, STEP-UP AND STEP-DOWN DEVICES USABLE WITH VOLTAMMETERS, CIRCUIT TRACERS, VOLT AND AMPERAGE RECORDING INSTRUMENTS, NULLBALANCE MEASURING INSTRUMENTS, DEVICES FOR AMPLIFYING MEASURING INSTRUMENTS, OUTPUT AND AUTOMATIC INSTRUMENT CONTROLLING SWITCHES
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