Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1993-03-01
1995-03-21
Nunn, Freda S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03565475
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patent: 5200913 (1993-04-01), Hawkins et al.
NEC--Oct 26, 1992--Portable Terminal.
Grid System on "Dempa Shimbun" pen style computer Mar. 27, 1989.
Dulaney Ken L.
Friend Steven D.
Silva Dennis
AST Research Inc.
Nunn Freda S.
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