Improvements in three-electrode semi-conductor amplifiers,申请号GB19490031853-传众专利搜索

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发明名称	Improvements in three-electrode semi-conductor amplifiers
摘要
申请公布号	GB692353(A)	申请公布日期	1953.06.03
申请号	GB19490031853	申请日期	1949.12.12
申请人	RADIO CORPORATION OF AMERICA	发明人
分类号	H01L29/00;H03F1/56;H03F3/04	主分类号	H01L29/00
代理机构		代理人
主权项
地址

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