深井高应力煤岩阶梯形滚筒
- Disigner of the Invention:杜长龙,薛玉刚,lijianping,江红祥,刘晓辉,刘增辉,韩栋栋
- Type of Patent:国内
- State of Patent:专利授权
- Application Number:201510012749.2
- Number of Inventors:8
- Service Invention or Not:no
- Application Date:2015-01-09
- Authorization Date:2017-04-19
- First Author:LIU Songyong
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