Indirekt beheizte Kathode für Elektronenröhren,申请号AT19610000273-传众专利搜索

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发明名称	Indirekt beheizte Kathode für Elektronenröhren
摘要
申请公布号	AT232611(B)	申请公布日期	1964.03.25
申请号	AT19610000273	申请日期	1961.01.13
申请人	RADIO CORPORATION OF AMERICA	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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