Perfectionnements aux lampes à décharge électronique,申请号FRD841954-传众专利搜索

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发明名称	Perfectionnements aux lampes à décharge électronique
摘要
申请公布号	FR841954(A)	申请公布日期	1939.06.02
申请号	FRD841954	申请日期	1938.08.10
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人
分类号	H01J19/00	主分类号	H01J19/00
代理机构		代理人
主权项
地址

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