High frequency amplification by thermionic valves,申请号GB19290011782-传众专利搜索

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发明名称	High frequency amplification by thermionic valves
摘要
申请公布号	GB331014(A)	申请公布日期	1930.06.26
申请号	GB19290011782	申请日期	1929.04.16
申请人	FRANK MURPHY;EDWARD JOSEPH POWER	发明人
分类号	H03F1/08	主分类号	H03F1/08
代理机构		代理人
主权项
地址

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