Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-02-08
1994-03-15
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03451461
REFERENCES:
patent: D309601 (1990-07-01), Sawada et al.
patent: 3284928 (1966-11-01), Kelley
patent: 4181964 (1980-01-01), Moore et al.
patent: 4382280 (1983-05-01), Mandel et al.
patent: 4824109 (1989-04-01), Cervantes
patent: 4937772 (1990-06-01), Chavez et al.
Burke Wallace R.
Gilden Leon
Nunn Freda S.
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