Coded track circuit signaling system for railroads,申请号US19460706329-传众专利搜索

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发明名称	Coded track circuit signaling system for railroads
摘要
申请公布号	US2499728(A)	申请公布日期	1950.03.07
申请号	US19460706329	申请日期	1946.10.29
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	CURRAN JOHN W.
分类号	B61L23/16	主分类号	B61L23/16
代理机构		代理人
主权项
地址

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