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发明名称
METHOD OF GAS CONTROL IN UNDERGROUND MINING OF COAL DEPOSITS
摘要
申请公布号
SU1543095(A1)
申请公布日期
1990.02.15
申请号
SU19884388826
申请日期
1988.03.04
申请人
INST GORNOGO DELA AN KAZAKHSK
发明人
KHAKIMZHANOV TEMIRKHAN E,SU;PAK LEV N,SU;SVANBAEV GYLYM T,SU
分类号
E21F7/00
主分类号
E21F7/00
代理机构
代理人
主权项
地址
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