Appareil automatique double de signalisation pour chemins de fer,申请号FRD691764-传众专利搜索

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发明名称	Appareil automatique double de signalisation pour chemins de fer
摘要
申请公布号	FR691764(A)	申请公布日期	1930.10.27
申请号	FRD691764	申请日期	1930.01.30
申请人		发明人	VINCENT VICTOR
分类号	B61L3/00	主分类号	B61L3/00
代理机构		代理人
主权项
地址

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