Nouveau procédé de fabrication des tubes ou enceintes à vide,申请号FRD62475-传众专利搜索

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发明名称	Nouveau procédé de fabrication des tubes ou enceintes à vide
摘要
申请公布号	FR62475(E)	申请公布日期	1955.06.14
申请号	FRD62475	申请日期	1952.02.16
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人
分类号	C03C27/04;H01J5/24	主分类号	C03C27/04
代理机构		代理人
主权项
地址

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