METHOD OF REDUCING QUANTITY OF WATER DRAINED VERTICALLY INTO WORKINGS OF OPEN PIT MINES,申请号PL19930298068-传众专利搜索

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发明名称	METHOD OF REDUCING QUANTITY OF WATER DRAINED VERTICALLY INTO WORKINGS OF OPEN PIT MINES
摘要
申请公布号	PL170249(B1)	申请公布日期	1996.11.29
申请号	PL19930298068	申请日期	1993.03.15
申请人	POLITECHNIKA WROCLAWSKA	发明人	CHRZAN TADEUSZ
分类号	E21F16/00;(IPC1-7):E21F16/00	主分类号	E21F16/00
代理机构		代理人
主权项
地址

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