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一种跳采式旺格维利采场支巷充填采煤方法

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

    矿业工程学院
  • Disigner of the Invention: 

    王飞,余孝民,张银忠,王家学,王俊杰,赵茂平,曹建波,狄鹏,金志远
  • State of Patent: 

    专利授权
  • Application Number: 

    2632087
  • Authorization number: 

    2632087
  • Number of Inventors: 

    10
  • Service Invention or Not: 

    no
  • Application Date: 

    2014-11-19
  • Authorization Date: 

    2017-10-02
  • First Author: 

    Ma Liqiang