Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1985-10-25
1988-02-02
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02940299
REFERENCES:
patent: D280511 (1985-09-01), Maggridge et al.
patent: D283511 (1986-04-01), Dunn
patent: D285562 (1986-09-01), Graham et al.
patent: D288566 (1987-03-01), Chin et al.
Hukushima Kazuyuki
Kotsuka Michiaki
Nishiyama Kazuhiko
Hitachi Keiyo Engineering Co. Ltd.
Lucas Susan J.
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