Traverse métallique pour voie ferrée,申请号FRD731286-传众专利搜索

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发明名称	Traverse métallique pour voie ferrée
摘要
申请公布号	FR731286(A)	申请公布日期	1932.08.31
申请号	FRD731286	申请日期	1932.02.11
申请人	SOCIETE ANONYME DES ACIERIES DE MICHEVILLE	发明人
分类号	E01B3/16	主分类号	E01B3/16
代理机构		代理人
主权项
地址

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