Filtre d'onde électrique,申请号FRD834981-传众专利搜索

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发明名称	Filtre d'onde électrique
摘要
申请公布号	FR834981(A)	申请公布日期	1938.12.08
申请号	FRD834981	申请日期	1938.03.08
申请人	ALLGEMEINE ELEKTRICITATS-GESELLSCHAFT	发明人
分类号	H04H20/81	主分类号	H04H20/81
代理机构		代理人
主权项
地址

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