TRACK SIGNALLING SYSTEM,申请号GB19770047550-传众专利搜索

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发明名称	TRACK SIGNALLING SYSTEM
摘要
申请公布号	GB1590983(A)	申请公布日期	1981.06.10
申请号	GB19770047550	申请日期	1977.11.15
申请人	GENERAL SIGNAL CORP	发明人
分类号	B61L23/16;(IPC1-7):B61L1/18	主分类号	B61L23/16
代理机构		代理人
主权项
地址

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