Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-12-04
1990-07-03
Zarfas, Louis S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03089673
REFERENCES:
patent: D186172 (1959-09-01), Seymour
patent: D283818 (1986-05-01), Skaggs
Pansophic Systems, Incorporated
Seifert R. T.
Zarfas Louis S,.
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