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一种钢管钢丝绳巷帮锚杆

  • Release time:2020-10-30
  • Hits:

  • Disigner of the Invention: 

    Ma Liqiang

  • Note: 

    马立强

  • Type of Patent: 

    国际

  • State of Patent: 

    专利撤回

  • Application Number: 

    200620126610.7

  • Authorization number: 

    CN 200964866Y

  • Number of Inventors: 

    3

  • Service Invention or Not: 

    no

  • Application Date: 

    2006-10-27

  • Authorization Date: 

    2007-10-24

  • First Author: 

    王锋
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