Electronic vacuum tube system,申请号US19270186039-传众专利搜索

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发明名称	Electronic vacuum tube system
摘要
申请公布号	US2094101(A)	申请公布日期	1937.09.28
申请号	US19270186039	申请日期	1927.04.23
申请人	RADIO CORPORATION	发明人	ELLIOTT HAROLD F.
分类号	H04B1/16	主分类号	H04B1/16
代理机构		代理人
主权项
地址

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