Patents
增阻让压锚杆
Release Time:2018-05-15
  • Type of Patent:
    发明
  • Application Number:
    201210020742.1
  • Number of Inventors:
    3
  • Service Invention or Not:
    No
  • Application Date:
    2012-01-30
  • Publication Date:
    2014-12-10
  • Authorization Date:
    2012-01-30
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