Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent
1997-12-23
1999-09-21
Zarfas, Louis S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Element or attachment
1403
Patent
active
D04141873
REFERENCES:
patent: D363935 (1995-11-01), McGreevy
patent: D378592 (1997-03-01), Hartwig et al.
patent: 2942265 (1960-06-01), Ratkevich
patent: 4079382 (1978-03-01), Henry
patent: 4639734 (1987-01-01), Schock
patent: 4804972 (1989-02-01), Schudel
Lange Mark J.
Upadhye Vishwanath G.
Andoll Greg
California Amplifier Company
Zarfas Louis S,.
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