Mining safety filter,申请号DE19863643862-传众专利搜索

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发明名称	Mining safety filter
摘要	Published without abstract.
申请公布号	DE3643862(A1)	申请公布日期	1988.06.30
申请号	DE19863643862	申请日期	1986.12.22
申请人	HOELTER,HEINZ,DIPL.-ING.	发明人	HOELTER,HEINZ,DIPL.-ING.;IGELBUESCHER,HEINRICH,DIPL.-ING.;GRESCH,HEINRICH,ING.;DEWERT,HERIBERT,DIPL.-ING.
分类号	E21F5/20;E21F11/00;(IPC1-7):B01D46/42;B01D46/00	主分类号	E21F5/20
代理机构		代理人
主权项
地址

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