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:201721805546.X
Number of Inventors:2
Service Invention or Not:no
Application Date:2017-12-21
Publication Date:2018-06-29
Authorization Date:2018-06-29
Application Date: 2017-12-21
Publication Date: 2018-06-29
Authorization Date: 2018-06-29