METHOD OF ROOF CONTROL IN PREPARATORY WORKINGS IN LOWER LAYERS OF THICK BED WITH SOLID ROOF,申请号SU19792858105-传众专利搜索

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发明名称	METHOD OF ROOF CONTROL IN PREPARATORY WORKINGS IN LOWER LAYERS OF THICK BED WITH SOLID ROOF
摘要
申请公布号	SU912947(A1)	申请公布日期	1982.03.15
申请号	SU19792858105	申请日期	1979.12.25
申请人	VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA "VNIMI"	发明人	KRUGLIKOV VYACHESLAV P,SU;ANDRANOVICH VALERIJ A,SU
分类号	E21D11/14;(IPC1-7):E21D11/14	主分类号	E21D11/14
代理机构		代理人
主权项
地址

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