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Title:一种具有使用期限提示功能的口罩
Institution:材料科学与工程学院
Type of Patent:发明
Application Number:201410796350.3
Number of Inventors:12
Service Invention or Not:No
Application Date:2014-12-18
Publication Date:2016-01-20
Authorization Date:2014-12-18
Release Time:2018-12-06