Circuit arrangement for electrical amplifiers,申请号US19300472339-传众专利搜索

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发明名称	Circuit arrangement for electrical amplifiers
摘要
申请公布号	US1985352(A)	申请公布日期	1934.12.25
申请号	US19300472339	申请日期	1930.08.01
申请人	JACQUES NUMANS JOHANNES	发明人	NUMANS JOHANNES JACQUES
分类号	H03F3/28;H03F3/32	主分类号	H03F3/28
代理机构		代理人
主权项
地址

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