Perfectionnement aux systèmes de signalisation optique et audible,申请号FRD44467-传众专利搜索

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发明名称	Perfectionnement aux systèmes de signalisation optique et audible
摘要
申请公布号	FR44467(E)	申请公布日期	1935.02.02
申请号	FRD44467	申请日期	1934.01.02
申请人		发明人	GUILLAUME BARRAL EMILE, JEAN,
分类号	G08B7/06	主分类号	G08B7/06
代理机构		代理人
主权项
地址

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