ALTERNATING CURRENT HEATED THERMIONIC DEVICE,申请号CAD329096-传众专利搜索

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发明名称	ALTERNATING CURRENT HEATED THERMIONIC DEVICE
摘要
申请公布号	CA329096(A)	申请公布日期	1933.01.03
申请号	CAD329096	申请日期
申请人	THE RADIO CORPORATION OF AMERICA	发明人	EKKO OOSTERHUIS
分类号		主分类号
代理机构		代理人
主权项
地址

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