A RAILWAY SIGNALLING SYSTEM,申请号GB19890007575-传众专利搜索

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发明名称	A RAILWAY SIGNALLING SYSTEM
摘要
申请公布号	GB8907575(D0)	申请公布日期	1989.05.17
申请号	GB19890007575	申请日期	1989.04.04
申请人	WESTINGHOUSE BRAKE AND SIGNAL HOLDINGS LIMITED	发明人
分类号	B61L21/10;B61L23/34	主分类号	B61L21/10
代理机构		代理人
主权项
地址

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