Radioroehre,申请号DE1931L078514D-传众专利搜索

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发明名称	Radioroehre
摘要
申请公布号	DE565547(C)	申请公布日期	1932.12.02
申请号	DE1931L078514D	申请日期	1931.05.29
申请人	RICHARD LUKAS	发明人
分类号	H01J19/50;H01J19/66	主分类号	H01J19/50
代理机构		代理人
主权项
地址

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