Perfectionnements aux systèmes amplificateurs ou répéteurs de signaux, ou relatifs à ces systèmes,申请号FRD991389-传众专利搜索

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发明名称	Perfectionnements aux systèmes amplificateurs ou répéteurs de signaux, ou relatifs à ces systèmes
摘要
申请公布号	FR991389(A)	申请公布日期	1951.10.04
申请号	FRD991389	申请日期	1949.07.26
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LTD	发明人
分类号	H04N5/202	主分类号	H04N5/202
代理机构		代理人
主权项
地址

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