Circular speakerphone

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Design Patent

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Design Patent

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29217535

CLAIM:
The ornamental design for a circular speakerphone, as shown and described.

REFERENCES:
patent: D292283 (1987-10-01), Matsuda et al.
patent: D327479 (1992-06-01), Britz
patent: D355416 (1995-02-01), McCay et al.
patent: D367274 (1996-02-01), Gobindram
patent: D376593 (1996-12-01), Riggs
patent: D457150 (2002-05-01), Chen
patent: D481370 (2003-10-01), Popowski et al.
patent: D495676 (2004-09-01), Slevin et al.
patent: D499392 (2004-12-01), Bathurst et al.
patent: 2003/0053620 (2003-03-01), Chen
“LifeSize Phone”, 2 pp including photos, [online], <URL:http://www.lifesize.com/products/lifesize_phone/>, site visited Sep. 8, 2006, no date found on Internet Archive.

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