Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-08-01
1986-09-23
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02857944
REFERENCES:
patent: D191400 (1961-09-01), Platzman
patent: D268283 (1983-03-01), Hicks
patent: D276320 (1984-11-01), Thalmir
patent: 3885136 (1975-05-01), Erickson
patent: 4383286 (1983-05-01), Hicks
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