Filtre d'ondes électriques,申请号FRD948664-传众专利搜索

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发明名称	Filtre d'ondes électriques
摘要
申请公布号	FR948664(A)	申请公布日期	1949.08.08
申请号	FRD948664	申请日期	1947.06.30
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人
分类号	H03H9/10;H03H9/54;H03H9/56;H03H9/60	主分类号	H03H9/10
代理机构		代理人
主权项
地址

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