Block indication apparatus for centralized traffic control systems of the normally inactive reversible coded track circuit type,申请号US19460690218-传众专利搜索

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发明名称	Block indication apparatus for centralized traffic control systems of the normally inactive reversible coded track circuit type
摘要
申请公布号	US2552862(A)	申请公布日期	1951.05.15
申请号	US19460690218	申请日期	1946.08.13
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	PASCOE FRANK T.;JEROME ARTHUR L.
分类号	B61L7/08	主分类号	B61L7/08
代理机构		代理人
主权项
地址

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