Thermionic tube and circuit,申请号US19350010772-传众专利搜索

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发明名称	Thermionic tube and circuit
摘要
申请公布号	US2093683(A)	申请公布日期	1937.09.21
申请号	US19350010772	申请日期	1935.03.13
申请人	RADIO CORPORATION	发明人	LINDENBLAD NILS E.
分类号	H03B5/18;H03B9/01	主分类号	H03B5/18
代理机构		代理人
主权项
地址

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