U.S. federal trademark · Serial No. 71451148 · Reg. No. 0397772
ELECTRICAL INTERCOMMUNICATION SYSTEMS FOR PAGING, ANNOUNCING, AND TWO-WAY CONVERSATIONAL PURPOSES, ELECTRICAL SOUND REPRODUCING EQUIPMENT AND PARTS THEREOF-NAMELY, ELECTRICAL AMPLIFIERS, MICROPHONES, SPEAKERS, AND RECEIVERS; AND ELECTRICAL PHONOGRAPH RECORD PLAYERS
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