Machine d'extraction du charbon pour l'abatage en galerie,申请号FRD1012825-传众专利搜索

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发明名称	Machine d'extraction du charbon pour l'abatage en galerie
摘要
申请公布号	FR1012825(A)	申请公布日期	1952.07.17
申请号	FRD1012825	申请日期	1950.02.14
申请人	GEBR. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI M. B. H.	发明人
分类号	E21C27/02	主分类号	E21C27/02
代理机构		代理人
主权项
地址

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