Direct current level changer for direct coupled amplifiers,申请号US19450616417-传众专利搜索

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发明名称	Direct current level changer for direct coupled amplifiers
摘要
申请公布号	US2554469(A)	申请公布日期	1951.05.22
申请号	US19450616417	申请日期	1945.09.14
申请人	MINZNER RAYMOND A	发明人	MINZNER RAYMOND A.
分类号	H03F3/36	主分类号	H03F3/36
代理机构		代理人
主权项
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