Improvements in or relating to thermionic amplifiers,申请号GB19290030167-传众专利搜索

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发明名称	Improvements in or relating to thermionic amplifiers
摘要
申请公布号	GB340615(A)	申请公布日期	1931.01.05
申请号	GB19290030167	申请日期	1929.10.04
申请人	MACRICE ERNEST ELLIOTT	发明人
分类号	H04B1/20	主分类号	H04B1/20
代理机构		代理人
主权项
地址

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