Perfectionnements aux amplificateurs à très large bande,申请号FRD918561-传众专利搜索

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法人/股东/高管

发明名称	Perfectionnements aux amplificateurs à très large bande
摘要
申请公布号	FR918561(A)	申请公布日期	1947.02.12
申请号	FRD918561	申请日期	1945.08.18
申请人	SOCIETE FRANCAISE RADIOELECTRIQUE	发明人
分类号	H03F1/50	主分类号	H03F1/50
代理机构		代理人
主权项
地址

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