Speakerphone

Details Speakerphone Speakerphone

1996-06-27

1997-08-12

Asch, Jeffrey

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

1403

Patent

active

D03822656

REFERENCES:
patent: D105513 (1937-08-01), Cardoza
patent: D199677 (1964-12-01), Mattingly
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patent: D284368 (1986-06-01), Stansbury
patent: D285681 (1986-09-01), Nakashima
patent: D286776 (1986-11-01), Pushelberg
patent: D298316 (1988-11-01), Maliskas
patent: D325594 (1992-04-01), Ditzig
patent: D335129 (1993-04-01), Thiesen et al.
patent: D339136 (1993-09-01), Knoedler
patent: D350136 (1994-08-01), Kim
patent: 4754484 (1988-06-01), Larkin et al.
NEC Advertisement, Voicepoint Audio Conference Terminal.

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