Système de block pour lignes à voie unique ou pour ligne à double voie,申请号FRD907753-传众专利搜索

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发明名称	Système de block pour lignes à voie unique ou pour ligne à double voie
摘要
申请公布号	FR907753(A)	申请公布日期	1946.03.21
申请号	FRD907753	申请日期	1944.05.05
申请人	COMPAGNIE FRANCAISE THOMSON-HOUSTON	发明人
分类号	B61L13/04	主分类号	B61L13/04
代理机构		代理人
主权项
地址

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