一种新型口罩
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Title:一种新型口罩
Institution:材料科学与工程学院
Type of Patent:实用新型
Application Number:201420820134.3
Number of Inventors:16
Service Invention or Not:No
Application Date:2014-12-19
Publication Date:2015-04-29
Authorization Date:2014-12-19
Release Time:2018-12-06