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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:201721496317.4
Number of Inventors:2
Service Invention or Not:no
Application Date:2017-11-10
Publication Date:2018-07-27
Authorization Date:2018-07-27
Application Date: 2017-11-10
Publication Date: 2018-07-27
Authorization Date: 2018-07-27