Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1985-11-04
1988-08-30
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 7
Patent
active
D02974290
REFERENCES:
patent: D239287 (1976-03-01), Ault
patent: D250294 (1978-11-01), Rose
patent: D283711 (1986-05-01), Deura et al.
patent: D292401 (1987-10-01), Lee et al.
patent: 4007443 (1977-02-01), Bromberg et al.
Pedinielli Gilbert
Richelet Daniel
Frisone John B.
International Business Machines Corp.
Lucas Susan J.
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