Affilication of Author(s):土建与水利学院
Patent Applicant:ZHANG Jiong,cuixinzhuang
Type of Patent:实用新型
Application Number:201822271863.9
Number of Inventors:2
Service Invention or Not:no
Application Date:2018-12-29
Publication Date:2019-07-12
Authorization Date:2019-07-12
Application Date: 2018-12-29
Publication Date: 2019-07-12
Authorization Date: 2019-07-12