Fabrication de traverses de chemin de fer en matières plastiques,申请号FRD1030572-传众专利搜索

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发明名称	Fabrication de traverses de chemin de fer en matières plastiques
摘要
申请公布号	FR1030572(A)	申请公布日期	1953.06.15
申请号	FRD1030572	申请日期	1950.06.09
申请人		发明人	BROGIOTTI JEAN-ANTOINE
分类号	E01B3/44	主分类号	E01B3/44
代理机构		代理人
主权项
地址

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