Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1994-04-20
1995-07-25
Nunn, Freda S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03606210
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Advertisements from Mobile Office, Feb. 1992, p. 30, showing AST Computers; and pp. 34 and 38, showing the Sony Data Discman.
PC Magazine Aug. 1993, p. 179 Badger Computer Location EIC Library.
Nunn Freda S.
Ripma David C.
Sharp Kabushiki Kaisha
Sharp Microelectronics Technology Inc.
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