Perfectionnements aux cathodes à oxydes pour tubes électroniques,申请号FRD1080710-传众专利搜索

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发明名称	Perfectionnements aux cathodes à oxydes pour tubes électroniques
摘要
申请公布号	FR1080710(A)	申请公布日期	1954.12.13
申请号	FRD1080710	申请日期	1953.04.20
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人
分类号	H01J1/28	主分类号	H01J1/28
代理机构		代理人
主权项
地址

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