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Title:用于钻孔静压渗透旋喷注浆的孔口密封装置及其使用方法
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:201510509314.9
Number of Inventors:2
Service Invention or Not:No
Application Date:2015-08-18
Publication Date:2017-04-19
Authorization Date:2017-04-19
Release Time:2019-04-15