U.S. federal trademark · Serial No. 73016482 · Reg. No. 1019276
GRADE CROSSING GATE ARMS, GRADE CROSSING PREDICTORS, MOTION SENSOR, PULSE MODULATED TRACK CIRCUITS, PHASE SHIFT OVERLAYS, ELECTRIC POWER SUPPLY APPARATUS TO OPERATE GRADE CROSSING CONTROL DEVICES-NAMELY, TRANSFORMERS, SIGNAL RECTIFIERS, POWER TRANSFER RELAYS, RADIO CONTROL UNITS, DISPATCHER CALL DECODERS, RAILWAY ELECTRICAL SURGE PROTECTORS
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