U.S. federal trademark · Serial No. 71559281 · Reg. No. 0527503
TELEPHONES, ELECTRICALLY OPERATED ANNUNCIATORS, APARTMENT HOUSE MAIL BOXES USED WITH ELECTRICAL RINGING AND TELEPHONE COMMUNICATION APPARATUS AND ELECTRICAL DOOR CONTROL DEVICES, ELECTRICAL HOSPITAL LIGHT SIGNALING INDICATORS, ANNUNCIATORS, TELEPHONE AND RINGING APPARATUS, ELECTRICAL CONNECTIONS, SOCKETS, PLUGS, AND JACKS
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