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一种前进式钻注一体装置及使用方法

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  • Affilication of Author(s):岩土与结构工程研究中心

  • Patent Applicant:Liu Rentai,zhangqingsong

  • Type of Patent:发明

  • Application Number:201910600577.9

  • Number of Inventors:2

  • Service Invention or Not:no

  • Application Date:2019-07-04

  • Publication Date:2020-05-26

  • Authorization Date:2020-05-26

  • Publication Date:2020-05-26

  • Application Date:2019-07-04

  • Authorization Date:2020-05-26
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