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Gas drainage method with wells for underground mining
- Release time:2024-09-01
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Affilication of Author(s):
中国矿业大学Scope of patent:
国内School Sign:
第一单位Disigner of the Invention:
Even,Wang Liang,wangliguo,chenhaidong,Qingquan LiuType of Patent:
InventState of Patent:
Authorized patentsApplication Number:
CN 201110133913.7Authorization number:
ZL 201110133913.7Number of Inventors:
6Service Invention or Not:
noApplication Date:
2011-05-24Authorization Date:
2013-06-05First Author:
chengyuanping