U.S. federal trademark · Serial No. 73185759 · Reg. No. 1121363
ELECTRICAL APPARATUS FOR INTERFACING AN ELECTRICAL PROTECTION CIRCUIT AT ONE PLACE WITH A SIGNAL TRANSMISSION SYSTEM INTENDED TO TRANSMIT ELECTRICAL PROTECTION SIGNALS OF THE FIRE, BURGLARY, HOLD-UP AND SUPERVISORY TYPE TO ANOTHER PLACE SUCH AS A CENTRAL STATION WHERE APPROPRIATE ACTION CAN BE INITIATED
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