Electrical circuit device,申请号US19530390549-传众专利搜索

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发明名称	Electrical circuit device
摘要
申请公布号	US2778992(A)	申请公布日期	1957.01.22
申请号	US19530390549	申请日期	1953.11.06
申请人	MCFARLAND WILLIAM O	发明人	MCFARLAND WILLIAM O.
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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