Improvements in or relating to electrical measuring apparatus,申请号GB19380002560-传众专利搜索

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发明名称	Improvements in or relating to electrical measuring apparatus
摘要
申请公布号	GB506199(A)	申请公布日期	1939.05.24
申请号	GB19380002560	申请日期	1938.01.27
申请人	ERICSSON TELEPHONES LIMITED;ERIC HENRY TOWNSEND	发明人
分类号	H04M1/24	主分类号	H04M1/24
代理机构		代理人
主权项
地址

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