METHOD OF WORKING MINE SECTIONS,申请号SU19894653877-传众专利搜索

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发明名称	METHOD OF WORKING MINE SECTIONS
摘要
申请公布号	SU1627704(A1)	申请公布日期	1991.02.15
申请号	SU19894653877	申请日期	1989.02.22
申请人	KARAGANDINSKIJ POLT INSTITUT	发明人	KVON SERGEJ S,SU;MAMONTOV YAKOV YA,SU;MAMONTOV ANATOLIJ YA,SU;ROOT EDGAR G,SU;DEMIN VLADIMIR F,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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