Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-10-16
1995-04-11
Bullock, B. J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03572382
REFERENCES:
patent: D291318 (1987-08-01), Kim
patent: D335656 (1993-05-01), Garthwaite et al.
patent: 4538476 (1985-09-01), Luque
patent: 4738417 (1988-04-01), Wenger
patent: 4952919 (1990-08-01), Nippoldt
patent: 5063289 (1991-11-01), Jasinski et al.
patent: 5268675 (1993-12-01), Garthwaite et al.
Bullock B. J.
Crabtree Edwin H.
Margolis Donald W.
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