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一种沿空小断面留巷开采方法

  • Release time:2020-10-30
  • Hits:
  • Affilication of Author(s): 

    矿业工程学院
  • Disigner of the Invention: 

    Ma Liqiang,于斌,zhangwei,王飞,杜勋
  • Type of Patent: 

    国内
  • State of Patent: 

    专利授权
  • Application Number: 

    201410201917.8
  • Number of Inventors: 

    6
  • Service Invention or Not: 

    no
  • Application Date: 

    2014-05-13
  • Authorization Date: 

    2016-04-20
  • First Author: 

    金志远