US Patent D557676 Conference telephone

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Patent Jurisdiction

Patent Number

Patent Inventor Names

Hironori Ohata0

Syohei Suzuki0

Tsutomu Irishima0

Yasuhiro Sota0

Keiichi Nakayama0

Masanobu Abe0

Date of Patent

December 18, 2007

Patent Application Number

29260970

Date Filed

June 5, 2006

Patent Primary Examiner

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