Patents
Current position: Home > Scientific Research > Patents
控制覆岩裂隙和地表沉陷的保水开采充填接顶方法
- Release time:2020-10-30
- Hits:
Affilication of Author(s):
矿业工程学院Disigner of the Invention:
金志远,余孝民,wangfei,孙海State of Patent:
专利授权Application Number:
9,689,258Authorization number:
9,689,258Number of Inventors:
5Service Invention or Not:
noApplication Date:
2014-11-19Authorization Date:
2017-06-27First Author:
Ma Liqiang
- Pre One:一种跳采式旺格维利采场支巷充填采煤方法
- Next One:一种矸石充填薄煤层掘进方法