Tube électronique à enveloppe céramique,申请号FRD1123991-传众专利搜索

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发明名称	Tube électronique à enveloppe céramique
摘要
申请公布号	FR1123991(A)	申请公布日期	1956.10.02
申请号	FRD1123991	申请日期	1955.05.12
申请人	EITEL-MCCULLOUGH, INC.	发明人
分类号	H01J21/36	主分类号	H01J21/36
代理机构		代理人
主权项
地址

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