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用于硬岩一次性开孔的系统

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

  • Patent Applicant:Liu Rentai

  • Type of Patent:实用新型

  • Application Number:201220655630.9

  • Number of Inventors:1

  • Service Invention or Not:no

  • Application Date:2012-12-03

  • Publication Date:2013-06-05

  • Authorization Date:2013-06-05

  • Publication Date:2013-06-05

  • Application Date:2012-12-03

  • Authorization Date:2013-06-05
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