Cathodes pour tubes électroniques,申请号FRD928819-传众专利搜索

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发明名称	Cathodes pour tubes électroniques
摘要
申请公布号	FR928819(A)	申请公布日期	1947.12.09
申请号	FRD928819	申请日期	1946.04.04
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	STANIER ANDREW F.
分类号	H01J1/14;H01J29/48	主分类号	H01J1/14
代理机构		代理人
主权项
地址

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