Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1993-05-07
1995-11-28
Asch, Jeffrey
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03646220
REFERENCES:
patent: D284189 (1986-06-01), Takeuchi et al.
patent: D288809 (1987-03-01), Asaki et al.
patent: D301338 (1989-05-01), Sato et al.
patent: D303526 (1989-09-01), Gordon
patent: D321511 (1991-11-01), Swarthout
patent: D321871 (1991-11-01), Ando
patent: D322786 (1991-12-01), Wu
patent: D340054 (1993-10-01), Wetzel et al.
patent: 5121427 (1992-06-01), Gumb et al.
Intertel, "Hitec" catalog, item 1232.
Intertel, "Hitec" catalog, item 824.
Asch Jeffrey
Siemens Aktiengesellschaft
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