Dispositif pour la correction variable d'une amplitude,申请号FRD1149642-传众专利搜索

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发明名称	Dispositif pour la correction variable d'une amplitude
摘要
申请公布号	FR1149642(A)	申请公布日期	1957.12.30
申请号	FRD1149642	申请日期	1956.05.17
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H03F1/20;H04N5/208;H04N5/21	主分类号	H03F1/20
代理机构		代理人
主权项
地址

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