METHOD OF UNDERGROUND MINING OF MANGANESE,申请号SU19894708827-传众专利搜索

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发明名称	METHOD OF UNDERGROUND MINING OF MANGANESE
摘要
申请公布号	SU1650908(A1)	申请公布日期	1991.05.23
申请号	SU19894708827	申请日期	1989.04.24
申请人	GRETSINGER ALEKSANDR B,SU;SEREBRYANAYA MARGARITA Z,SU;LESNIKOV VLADIMIR S,SU;IVASHCHENKO NATALIYA G,SU	发明人	GRETSINGER ALEKSANDR B,SU;SEREBRYANAYA MARGARITA Z,SU;LESNIKOV VLADIMIR S,SU;IVASHCHENKO NATALIYA G,SU
分类号	E21B43/28	主分类号	E21B43/28
代理机构		代理人
主权项
地址

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