Rail de chemin de fer avec résistance accrue à l'usure de ses parties soumises à des efforts élevés,申请号FRD881866-传众专利搜索

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发明名称	Rail de chemin de fer avec résistance accrue à l'usure de ses parties soumises à des efforts élevés
摘要
申请公布号	FR881866(A)	申请公布日期	1943.05.11
申请号	FRD881866	申请日期	1942.05.08
申请人	SOCIETE INDUSTRIELLE ET COMMERCIALE DES ACIERS	发明人
分类号	E01B5/14	主分类号	E01B5/14
代理机构		代理人
主权项
地址

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