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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D0570820

CLAIM:
I claim the ornamental design for a speakerphone, as shown and described.

REFERENCES:
patent: D307274 (1990-04-01), Sasaki et al.
patent: D349701 (1994-08-01), Beutler et al.
patent: D375948 (1996-11-01), Langlois
patent: 5778085 (1998-07-01), Sasaki
patent: D406841 (1999-03-01), Myung
patent: 5912967 (1999-06-01), Gaffney et al.
patent: D413021 (1999-08-01), Wheatley et al.
patent: D460753 (2002-07-01), Hill et al.
patent: D471542 (2003-03-01), Sim
patent: D481371 (2003-10-01), Chen
patent: D488794 (2004-04-01), Chen
patent: D493169 (2004-07-01), Cheng
patent: D531999 (2006-11-01), Bourne et al.
patent: D539274 (2007-03-01), Bourne et al.
patent: D545807 (2007-07-01), Peterson et al.
patent: D557676 (2007-12-01), Suzuki et al.
patent: D558728 (2008-01-01), Murakami
Panasonic KX-TS730, <URL:http://www.101phones.com/details/1979-195/Panasonic-Conference-Phones-KX-TS730.html>, retrieved from internet Feb. 11, 2008.

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