Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1993-11-12
1995-07-11
Nunn, Freda S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 50
Patent
active
D03601943
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"Pen style" Grid System, on Dempa Shimbun (1989).
Video Technology Industries, Inc. Catalog, p. 36 (1991).
Nunn Freda S.
Sony Corporation
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