liudongxu

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Gender:Male
Date of Employment:1990-08-01

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一种随体位变化调节呼气正压的通气面罩

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Patent Applicant:ql00600
Type of Patent:发明
Application Number:201310334941.4
Number of Inventors:10
Service Invention or Not:no
Application Date:2013-08-02
Publication Date:2015-06-17
Authorization Date:2013-08-02