U.S. federal trademark · Serial No. 71491966 · Reg. No. 0428429
LOUDSPEAKERS AND AMPLIFIERS USED IN PUBLIC ADRESS SYSTEMS AND ALSO APPARATUS FOR INTERCOMMUNICATION BETWEEN ONE MOVING VEHICLE AND ANOTHER AND BETWEEN A MOVING VEHICLE AND A FIXED POINT, SPECIFICALLY TRANSMITTERS, RECEIVERS, MICROPHONES, LOUDSPEAKERS, RELAYS, AND INDICATION LIGHTS, AND PARTS THEREOF, AND FOR ACCESSORIES USED IN CONNECTION THEREWITH
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