Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio transceiver
Patent
1991-08-19
1993-09-28
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Radio transceiver
Patent
active
D03398021
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Furuya Jyun
Hosoya Akiyoshi
Kawamura Kunihito
Moriya Toshiyuki
Nishiyama Takanori
Asch Jeffrey
Douglas Alan P.
Hitachi , Ltd.
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