Elektrisk Udladningsrør med to eller flere Gitre.,申请号DKD58250-传众专利搜索

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发明名称	Elektrisk Udladningsrør med to eller flere Gitre.
摘要
申请公布号	DK58250(C)	申请公布日期	1940.12.16
申请号	DKD58250	申请日期	1938.11.26
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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