Anti-spalling blocking bar for large cross-section coal gallery excvation work surface and supporting methold
- School Sign:第一单位
- Disigner of the Invention:陈淼
- Type of Patent:国内
- State of Patent:专利授权
- Application Number:10247001B2
- Service Invention or Not:no
- Application Date:2016-08-31
- Authorization Date:2019-04-02
- First Author:Young