Affilication of Author(s):土建与水利学院
Patent Applicant:zhaoranhang,wanghaofang
Type of Patent:实用新型
Application Number:201920527283.3
Number of Inventors:2
Service Invention or Not:no
Application Date:2019-04-17
Publication Date:2019-10-18
Authorization Date:2019-10-18
Application Date: 2019-04-17
Publication Date: 2019-10-18
Authorization Date: 2019-10-18