METHOD OF CHAMBER MINING OF MINERAL WITH FILLING-UP OF EXCAVATED SPACE,申请号SU19864080621-传众专利搜索

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发明名称	METHOD OF CHAMBER MINING OF MINERAL WITH FILLING-UP OF EXCAVATED SPACE
摘要
申请公布号	SU1460272(A1)	申请公布日期	1989.02.23
申请号	SU19864080621	申请日期	1986.06.24
申请人	PERMSKIJ POLT INSTITUT	发明人	ARTEMOV VLADISLAV G,SU
分类号		主分类号
代理机构		代理人
主权项
地址

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