Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1982-09-20
1985-10-29
Gandy, James M.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D29 99
Patent
active
D02811634
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patent: D131556 (1942-03-01), Karabin et al.
patent: 2053896 (1936-09-01), Cover
patent: 2153437 (1939-04-01), Schwartz
patent: 2213433 (1940-09-01), Punton
patent: 2269461 (1942-01-01), Lehmberg
patent: 4038979 (1977-08-01), McCosker
patent: 4308041 (1981-12-01), Ellis et al.
patent: 4489356 (1984-12-01), Farmer
Donaldson & Company, Inc.
Gandy James M.
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