Amplifier,申请号US19400332819-传众专利搜索

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发明名称	Amplifier
摘要
申请公布号	US2305743(A)	申请公布日期	1942.12.22
申请号	US19400332819	申请日期	1940.05.01
申请人	HARTFORD NATIONAL BANK AND TRUST COMPANY	发明人	SIX WILLEM
分类号	H03F1/36	主分类号	H03F1/36
代理机构		代理人
主权项
地址

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