Affilication of Author(s):土建与水利学院
Patent Applicant:zhaoranhang
Type of Patent:实用新型
Application Number:201920787803.4
Number of Inventors:1
Service Invention or Not:no
Application Date:2019-05-28
Publication Date:2020-01-21
Authorization Date:2020-01-21
Application Date: 2019-05-28
Publication Date: 2020-01-21
Authorization Date: 2020-01-21