Perfectionnements aux lampes pour ondes courtes,申请号FRD865427-传众专利搜索

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发明名称	Perfectionnements aux lampes pour ondes courtes
摘要
申请公布号	FR865427(A)	申请公布日期	1941.05.23
申请号	FRD865427	申请日期	1940.05.04
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人
分类号	H01J19/30	主分类号	H01J19/30
代理机构		代理人
主权项
地址

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