ETAI EN FER POUR GALERIES DE MINE,申请号BED441916-传众专利搜索

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发明名称	ETAI EN FER POUR GALERIES DE MINE
摘要
申请公布号	BE441916(A)	申请公布日期	1941.07.31
申请号	BED441916	申请日期	1941.06.26
申请人	KOEPE ARNOLD	发明人
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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