Device for measuring electrical resistance,申请号US19390295572-传众专利搜索

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发明名称	Device for measuring electrical resistance
摘要
申请公布号	US2272239(A)	申请公布日期	1942.02.10
申请号	US19390295572	申请日期	1939.09.19
申请人	DELMHORST WILLIAM J	发明人	DELMHORST WILLIAM J.
分类号	G01R27/02	主分类号	G01R27/02
代理机构		代理人
主权项
地址

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