Perfectionnements au montage des relais de voie montés en pont dans les installations de signalisation,申请号FRD831651-传众专利搜索

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发明名称	Perfectionnements au montage des relais de voie montés en pont dans les installations de signalisation
摘要
申请公布号	FR831651(A)	申请公布日期	1938.09.12
申请号	FRD831651	申请日期	1937.04.14
申请人	COMPAGNIE DE SIGNAUX & D'ENTREPRISES ELECTRIQUES	发明人
分类号	B61L1/18	主分类号	B61L1/18
代理机构		代理人
主权项
地址

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