Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Video
Patent
1990-10-25
1993-03-23
Pfeffer, Terry A.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Video
Patent
active
D03341860
REFERENCES:
patent: 4621297 (1986-11-01), Beyersbergen van Henegouwen et al.
patent: 4697702 (1987-10-01), Urayama
patent: 4775911 (1988-10-01), Sato et al.
Tanaka Masato
Yanaka Kiyotaka
Eslinger Lewis H.
Maioli Jay H.
Pfeffer Terry A.
Sony Corporation
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