METHOD OF MINING MINERALS FROM THEIR UNDERGROUND DEPOSITS,申请号PL19910292233-传众专利搜索

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发明名称	METHOD OF MINING MINERALS FROM THEIR UNDERGROUND DEPOSITS
摘要
申请公布号	PL165963(B1)	申请公布日期	1995.03.31
申请号	PL19910292233	申请日期	1991.10.29
申请人	BIERNACKI WIESLAW	发明人	BIERNACKI WIESLAW
分类号	E21C41/22;(IPC1-7):E21C41/22	主分类号	E21C41/22
代理机构		代理人
主权项
地址

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