Thermionic valve apparatus for use on very short waves,申请号US19370150444-传众专利搜索

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发明名称	Thermionic valve apparatus for use on very short waves
摘要
申请公布号	US2223985(A)	申请公布日期	1940.12.03
申请号	US19370150444	申请日期	1937.06.26
申请人	RADIO CORPORATION	发明人	DAVIS NORMAN EUSTACE;GREEN ERNEST;HALL ALFRED WEEDON
分类号	H04B1/036	主分类号	H04B1/036
代理机构		代理人
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