Sortie de grille annulaire placée dans le pied du tube,申请号FRD977458-传众专利搜索

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发明名称	Sortie de grille annulaire placée dans le pied du tube
摘要
申请公布号	FR977458(A)	申请公布日期	1951.04.02
申请号	FRD977458	申请日期	1942.07.08
申请人	SOCIETE FRANCAISE RADIO-ELECTRIQUE	发明人
分类号	H01J19/34	主分类号	H01J19/34
代理机构		代理人
主权项
地址

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