Amplifier,申请号US19430473695-传众专利搜索

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发明名称	Amplifier
摘要
申请公布号	US2375821(A)	申请公布日期	1945.05.15
申请号	US19430473695	申请日期	1943.01.27
申请人	RADIO CORPORATION OF AMERICA	发明人	ROBERTS WALTER VAN B.
分类号	H03F1/07	主分类号	H03F1/07
代理机构		代理人
主权项
地址

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