Systèmes translateurs et amplificateurs d'ondes électriques de signalisation,申请号FRD40125-传众专利搜索

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发明名称	Systèmes translateurs et amplificateurs d'ondes électriques de signalisation
摘要
申请公布号	FR40125(E)	申请公布日期	1932.04.20
申请号	FRD40125	申请日期	1931.03.11
申请人	LE MATERIEL TELEPHONIQUE	发明人
分类号	H03F1/36	主分类号	H03F1/36
代理机构		代理人
主权项
地址

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