Electrical testing device,申请号US19470791417-传众专利搜索

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发明名称	Electrical testing device
摘要
申请公布号	US2515004(A)	申请公布日期	1950.07.11
申请号	US19470791417	申请日期	1947.12.12
申请人	THE KELLEY-KOETT MANUFACTURING CO.	发明人	HAUPT WALTER H.
分类号	G01R1/067	主分类号	G01R1/067
代理机构		代理人
主权项
地址

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