Indirekt beheizte Kathode fuer Elektronenroehren,申请号DED544533D-传众专利搜索

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发明名称	Indirekt beheizte Kathode fuer Elektronenroehren
摘要
申请公布号	DE544533(C)	申请公布日期	1932.02.19
申请号	DED544533D	申请日期	1930.05.09
申请人	SUEDDEUTSCHE TELEFON-APPARATE-, KABEL- UND DRAHTWERKE AKT.-GES.	发明人
分类号	H01J1/24	主分类号	H01J1/24
代理机构		代理人
主权项
地址

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