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不影响支护作业且可按预定路径破岩的偏心滚刀式掘进机

  • Release time:2023-09-01
  • Hits:
  • School Sign: 

    第一单位
  • Disigner of the Invention: 

    zhuzhencai,LIU Songyong
  • Type of Patent: 

    国内
  • State of Patent: 

    专利授权
  • Application Number: 

    RU2777772C1
  • Service Invention or Not: 

    no
  • Application Date: 

    2020-04-14
  • Authorization Date: 

    2022-08-09
  • First Author: 

    jianghongxiang