• 中文

韩涛   Lecturer

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一种径向预应力钻井井壁结构及其施工方法

Release time:2020-10-30  Hits:

  • Affilication of Author(s):力学与土木工程学院
  • Type of Patent:发明
  • State of Patent:专利授权
  • Application Number:201710169906.X
  • Number of Inventors:7
  • Service Invention or Not:no
  • Application Date:2017-03-21
  • Authorization Date:2020-06-30