Improvements relating to railway traffic control systems,申请号GB19520005986-传众专利搜索

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发明名称	Improvements relating to railway traffic control systems
摘要
申请公布号	GB727736(A)	申请公布日期	1955.04.06
申请号	GB19520005986	申请日期	1952.03.07
申请人	WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED;CHARLES FRANCIS DICKSON VENNING;JOHN SYDNEY HAWKES	发明人
分类号	B61L19/06	主分类号	B61L19/06
代理机构		代理人
主权项
地址

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