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| Patents for G11B 31 - Arrangements for the associated working of recording or reproducing apparatus with related apparatus (6,218) |
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| 06/28/1977 | US4032713 Recording tape control arrangement for telephone answering apparatus | | 06/21/1977 | US4031334 Apparatus for magnetic recording and/or reproducing of signals received by one or more signal receiving devices | | 05/03/1977 | US4021856 Cassette tape recorder | | 03/15/1977 | US4012784 Voice logging recorder including decks dedicated for both logging and recall operations | | 03/08/1977 | US4011411 Automatic telephone answering and recording device | | 01/11/1977 | US4002887 Digital area navigation system and combined magnetic card reader and encoder | | 01/11/1977 | US4002858 Audio program switching apparatus | | 12/21/1976 | US3999016 Automatic telephone answering and message recording apparatus | | 12/14/1976 | US3997917 Card handling apparatus | | 11/09/1976 | US3991369 Cartridge-type radio-communication device | | 09/21/1976 | US3981265 Combined dial scale and station indicator | | 08/31/1976 | US3978524 Reproducer | | 06/15/1976 | US3963331 Camera capable of simultaneous sound recording | | 06/08/1976 | US3962532 Power supply for an audio-video recording system | | 05/11/1976 | US3956591 Two-input automatic source selector for stereo entertainment center | | 04/06/1976 | US3949425 Video systems | | 03/09/1976 | US3943567 Ejection device for tape cartridge | | 01/20/1976 | US3934267 Vital phenomenon recording and/or reproducing device |
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