Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1989-05-23
1995-11-14
Nunn, Freda S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03641546
REFERENCES:
patent: 4129746 (1978-12-01), Lambden
patent: 4482064 (1984-11-01), Berke et al.
patent: 4545554 (1985-10-01), Latino et al.
patent: 4776284 (1988-10-01), McIntosh
patent: 4913390 (1990-04-01), Berke
Knighton Warren D.
Knighton William W.
Moy Jeffrey D.
Nunn Freda S.
Weiss Harry M.
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