Improvements in or relating to electric pulse signalling systems,申请号GB19480029092-传众专利搜索

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发明名称	Improvements in or relating to electric pulse signalling systems
摘要
申请公布号	GB663872(A)	申请公布日期	1951.12.27
申请号	GB19480029092	申请日期	1948.11.09
申请人	WESTERN ELECTRIC COMPANY	发明人
分类号	H01J31/04;H03M1/00;H03M13/00;H04B14/02;H04B14/04	主分类号	H01J31/04
代理机构		代理人
主权项
地址

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