U.S. federal trademark · Serial No. 72046482 · Reg. No. 0680340
RADIO TELEPHONE EQUIPMENT AND ACCESSORIES COMPRISING CALL BOXES, DIALING ASSEMBLIES, TELEPHONE UNITS, SELECTIVE CALLING SYSTEMS, VOICE OPERATED RELAYS, SELECTIVE SIGNALLING DEVICES, SELECTIVE RECEIVING DEVICES, TERMINATION EQUIPMENT, FILTERS, PROTECTORS, AND AUTOMATIC SIGNALLING AND CONTROL EQUIPMENT
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