Systèmes à décharge électronique à fréquences très élevées,申请号FRD839401-传众专利搜索

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发明名称	Systèmes à décharge électronique à fréquences très élevées
摘要
申请公布号	FR839401(A)	申请公布日期	1939.04.04
申请号	FRD839401	申请日期	1937.12.07
申请人	LE MATERIEL TELEPHONIQUE	发明人
分类号	H01J25/02;H01J25/04;H01J25/34;H03B9/01;H03C7/00;H03D1/26	主分类号	H01J25/02
代理机构		代理人
主权项
地址

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