Perfectionnements aux filtres de transmission d'ondes électriques,申请号FRD785240-传众专利搜索

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发明名称	Perfectionnements aux filtres de transmission d'ondes électriques
摘要
申请公布号	FR785240(A)	申请公布日期	1935.08.05
申请号	FRD785240	申请日期	1934.12.22
申请人	LE MATERIEL TELEPHONIQUE, SOCIETE ANONYME	发明人
分类号	H04B3/14	主分类号	H04B3/14
代理机构		代理人
主权项
地址

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