Electrical testing device,申请号US19560572095-传众专利搜索

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发明名称	Electrical testing device
摘要
申请公布号	US2832930(A)	申请公布日期	1958.04.29
申请号	US19560572095	申请日期	1956.03.16
申请人	HOWELL HAYS HARRY	发明人	HAYS HARRY HOWELL
分类号	G01R31/02	主分类号	G01R31/02
代理机构		代理人
主权项
地址

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