Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-09-05
1993-06-29
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03368998
REFERENCES:
patent: D298233 (1988-10-01), Weisz et al.
patent: D307134 (1990-04-01), Makidera
patent: D313409 (1991-01-01), Chowdhree et al.
patent: D317151 (1991-05-01), Daly
patent: 4973800 (1990-11-01), Sindeband et al.
patent: 5101081 (1992-03-01), Drumm
Burke Wallace R.
Litman Richard C.
Tung M. H.
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