Telephone conferencing device

Details Telephone conferencing device Telephone conferencing device

2007-11-27

2007-11-27

Rademaker, Charles A. (Department: 2916)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Design Patent

active

29227601

CLAIM:
The ornamental design for a telephone conferencing device, as shown and described.

REFERENCES:
patent: D356797 (1995-03-01), Young
patent: D363722 (1995-10-01), Aldridge et al.
patent: D367042 (1996-02-01), Morrow et al.
patent: D383458 (1997-09-01), Biasotti et al.
patent: D413021 (1999-08-01), Wheatley et al.
patent: D453153 (2002-01-01), Yu et al.
patent: D460753 (2002-07-01), Hill et al.
patent: D471542 (2003-03-01), Sim
patent: D483353 (2003-12-01), Hyogo
patent: D510343 (2005-10-01), Wallace et al.

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