| DYNASONIC TALK-A-PHONE CO.
71587980 17 Nov 1949 | on 20 Jul 2002 | SELECTOR MECHANISM USED IN INTERPLANT AND INTEROFFICE TELEPHONIC COMMU... Class 021 Class 021 Houseware and Glass Products SELECTOR MECHANISM USED IN INTERPLANT AND INTEROFFICE TELEPHONIC COMMUNICATION APPARATUS | | | MULTI MAGIC TALK-A-PHONE CO.
71591441 25 Jan 1950 | on 20 Apr 2002 | INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTI... Class 021 Class 021 Houseware and Glass Products INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTING OF SPEAKERS, AMPLIFIERS, AND INTERCOMMUNICATING CIRCUITS THEREFOR | | | CHIEF TALK-A-PHONE CO.
71582661 28 Jul 1949 | on 08 Dec 2001 | INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTI... Class 021 Class 021 Houseware and Glass Products INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTING OF SPEAKERS, AMPLIFIERS AND INTERCOMMUNICATING CIRCUITS THEREFOR | | | ELSIE TALK-A-PHONE CO.
71587981 17 Nov 1949 | on 03 Nov 1992 | INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTI... Class 021 Class 021 Houseware and Glass Products INTEROFFICE AND INTERPLANT TELEPHONIC COMMUNICATION APPARATUS CONSISTING OF SPEAKERS, AMPLIFIERS, AND INTERCOMMUNICATING CIRCUITS, THEREFOR | |