Improvements in or relating to railway classification systems,申请号GB19570005595-传众专利搜索

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发明名称	Improvements in or relating to railway classification systems
摘要
申请公布号	GB806823(A)	申请公布日期	1958.12.31
申请号	GB19570005595	申请日期	1957.02.19
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人
分类号	B61L17/02	主分类号	B61L17/02
代理机构		代理人
主权项
地址

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