Improvements relating to the measurement of electrical resistance,申请号GB19370032261-传众专利搜索

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发明名称	Improvements relating to the measurement of electrical resistance
摘要
申请公布号	GB506173(A)	申请公布日期	1939.05.23
申请号	GB19370032261	申请日期	1937.11.23
申请人	EVERSHED & VIGNOLES, LIMITED;CHARLES EDWIN PERRY	发明人
分类号	G01R27/02;G01R27/12	主分类号	G01R27/02
代理机构		代理人
主权项
地址

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