,申请号FR19750021885-传众专利搜索

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发明名称
摘要
申请公布号	FR2278085(B1)	申请公布日期	1977.12.09
申请号	FR19750021885	申请日期	1975.07.11
申请人	RUHRKOHLE AG	发明人
分类号	G01V1/00;E21C39/00;E21F17/00;G01H1/00;G01H11/08;G01V1/16;G01V1/18;(IPC1-7):G01V1/16	主分类号	G01V1/00
代理机构		代理人
主权项
地址

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