一种新型口罩
Hits:
Title:一种新型口罩
Institution:材料科学与工程学院
Type of Patent:Utility models
Application Number:201420820134.3
Number of Inventors:1
Service Invention or Not:No
Application Date:2014-12-19
Publication Date:2015-04-29
Authorization Date:2015-04-29
Release Time:2019-04-15