Perfectionnements aux plaques-coussinets ou supports de rails de chemin de fer,申请号FRD773301-传众专利搜索

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发明名称	Perfectionnements aux plaques-coussinets ou supports de rails de chemin de fer
摘要
申请公布号	FR773301(A)	申请公布日期	1934.11.16
申请号	FRD773301	申请日期	1934.05.15
申请人		发明人	MAYO
分类号	E01B3/24	主分类号	E01B3/24
代理机构		代理人
主权项
地址

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