US Patent 8876582 Ventilation device

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Patent Jurisdiction

Patent Number

Patent Inventor Names

Zhenjian Yang0

Jingtao Yang0

Qingquan Liu0

Shouyong Gao0

Jianrong Zhu0

Date of Patent

November 4, 2014

Patent Application Number

130757690

Date Filed

March 30, 2011

Patent Citations Received

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