METHOD OF PROTECTING PREPARATORY MINE WORKINGS,申请号SU19782651787-传众专利搜索

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发明名称	METHOD OF PROTECTING PREPARATORY MINE WORKINGS
摘要
申请公布号	SU723162(A1)	申请公布日期	1980.03.25
申请号	SU19782651787	申请日期	1978.07.31
申请人	VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA	发明人	BAZHIN ALEKSANDR N,SU;BAZHIN NIKOLAJ P,SU
分类号	E21D13/02;(IPC1-7):E21D13/02	主分类号	E21D13/02
代理机构		代理人
主权项
地址

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