Perfectionnements aux systèmes de signalisation à distance par signaux conventionnels,申请号FRD61244-传众专利搜索

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发明名称	Perfectionnements aux systèmes de signalisation à distance par signaux conventionnels
摘要
申请公布号	FR61244(E)	申请公布日期	1955.04.05
申请号	FRD61244	申请日期	1951.03.01
申请人	SOCIETE ALSACIENNE DE CONSTRUCTIONS MECANIQUES	发明人
分类号	H03M1/00;H04B14/02	主分类号	H03M1/00
代理机构		代理人
主权项
地址

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