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Title:巷道破碎涌水围岩钻孔套管隔压渗透封固注浆装置及工艺
Institution:岩土与地下工程研究院
Type of Patent:Invent
Application Number:201210583132.2
Number of Inventors:1
Service Invention or Not:No
Application Date:2012-12-28
Publication Date:2013-11-06
Authorization Date:2013-11-06
Release Time:2019-04-15