Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1989-04-20
1991-08-27
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03194353
REFERENCES:
patent: D291314 (1987-08-01), Sharp
patent: D294262 (1988-02-01), Thies et al.
patent: D303661 (1989-09-01), Manabe et al.
patent: 4438458 (1984-03-01), Munscher
patent: 4528597 (1985-07-01), Klein et al.
patent: 4669694 (1987-06-01), Malick
patent: 4729533 (1988-03-01), Hillary et al.
patent: 4834329 (1989-05-01), Delapp
Burke Wallace R.
Hogeboom Robert C.
Mowle John E.
Northern Telecom Limited
Nunn Freda S.
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