Improvements in or relating to electric signalling systems,申请号GB19360003640-传众专利搜索

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发明名称	Improvements in or relating to electric signalling systems
摘要
申请公布号	GB455189(A)	申请公布日期	1936.10.15
申请号	GB19360003640	申请日期	1936.02.06
申请人	SIEMENS & HALSKE AKTIENGESELLSCHAFT	发明人
分类号	C01F15/00;H04B3/20	主分类号	C01F15/00
代理机构		代理人
主权项
地址

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