METHOD OF REDUCING WATER INFLOW INTO MINE WORKINGS,申请号SU19894640451-传众专利搜索

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发明名称	METHOD OF REDUCING WATER INFLOW INTO MINE WORKINGS
摘要
申请公布号	SU1617145(A1)	申请公布日期	1990.12.30
申请号	SU19894640451	申请日期	1989.01.20
申请人	VNII GORNOJ GEOMEKHANIKI MARK	发明人	VEDYASHKIN ANATOLIJ S,SU
分类号	E21C41/18	主分类号	E21C41/18
代理机构		代理人
主权项
地址

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