METHOD OF EXCAVATING COAL FROM SERIES OF INCLINED AND STEEP SEAMS UNDER UNDERMINED OBJECTS,申请号SU19884394176-传众专利搜索

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发明名称	METHOD OF EXCAVATING COAL FROM SERIES OF INCLINED AND STEEP SEAMS UNDER UNDERMINED OBJECTS
摘要
申请公布号	SU1592514(A1)	申请公布日期	1990.09.15
申请号	SU19884394176	申请日期	1988.03.21
申请人	VNII GORNOJ GEOMEKHANIKI MARK	发明人	PETUKHOV IGOR A,SU;ZEMISEV VLADIMIR N,SU;SMORODINA TATYANA P,SU
分类号	E21F5/00	主分类号	E21F5/00
代理机构		代理人
主权项
地址

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