étai en fer pour galeries de mine,申请号FRD873730-传众专利搜索

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发明名称	étai en fer pour galeries de mine
摘要
申请公布号	FR873730(A)	申请公布日期	1942.07.17
申请号	FRD873730	申请日期	1941.07.09
申请人		发明人	KOEPE ARNOLD
分类号	E21D15/38;E21D15/502	主分类号	E21D15/38
代理机构		代理人
主权项
地址

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