Improvements relating to railway track circuit apparatus,申请号GB19420014612-传众专利搜索

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发明名称	Improvements relating to railway track circuit apparatus
摘要
申请公布号	GB572894(A)	申请公布日期	1945.10.29
申请号	GB19420014612	申请日期	1942.10.19
申请人	ARTHUR VAUGHAN TOMLINSON	发明人
分类号	B61L23/16	主分类号	B61L23/16
代理机构		代理人
主权项
地址

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