Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-11-13
1995-11-14
Nunn, Freda
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03641449
REFERENCES:
patent: D247563 (1978-03-01), Jinbo et al.
patent: D275102 (1984-08-01), MacConnell
patent: 4799083 (1989-01-01), Knodt
patent: 5260885 (1993-11-01), Ma
Lucente Samuel A. M.
Sapper Richard F.
Grosser George E.
International Business Machines - Corporation
Nunn Freda
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