Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1980-08-14
1982-11-09
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D1402
Patent
active
D02668483
REFERENCES:
patent: D227375 (1973-06-01), Howard
patent: D239293 (1976-03-01), Carroll
patent: D246368 (1977-11-01), Barnich et al.
patent: D247779 (1978-04-01), Barnich et al.
Lucas Susan J.
Sinclair Research Limited
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