Patents
一种监测煤矿巷道变形的新型多点位移计
- School Sign:第一单位
- Disigner of the Invention:魏群,张农
- Type of Patent:国内
- State of Patent:专利授权
- Application Number:201711070539.5
- Service Invention or Not:no
- Application Date:2017-11-03
- Authorization Date:2019-04-19
- First Author:Xiaowei Feng
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