Усилитель с отрицательной связью,申请号SU19390036378-传众专利搜索

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发明名称	Усилитель с отрицательной связью
摘要
申请公布号	SU77497(A3)	申请公布日期	1948.11.30
申请号	SU19390036378	申请日期	1939.12.26
申请人	GLAVNOE UPRAVLENIE ELEKTROSLABOTOCHNOJ PROMYSHLENNOSTI	发明人	E. GEROLD
分类号	H03F1/34	主分类号	H03F1/34
代理机构		代理人
主权项
地址

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