Speaker phone

Details Speaker phone Speaker phone

1997-10-21

1998-10-20

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D14243, 1403

Patent

active

D03998428

REFERENCES:
patent: D304335 (1989-10-01), Chen
patent: D307274 (1990-04-01), Sasaki et al.
patent: D342732 (1993-12-01), Hinman et al.
patent: D346598 (1994-05-01), McCan et al.
patent: D355416 (1995-02-01), McCan et al.
patent: D373585 (1996-09-01), Nagele et al.
patent: D382265 (1997-08-01), Bradley et al.
patent: D382266 (1997-08-01), Wakefield
patent: 5664015 (1997-09-01), Ford et al.
Hello Direct on line, Siemens/Rolm PBX, www.hello-direct.com Feb. 1998.

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