Appareil pour l'étude des phénomènes dépendant de fréquences,申请号FRD872457-传众专利搜索

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发明名称	Appareil pour l'étude des phénomènes dépendant de fréquences
摘要
申请公布号	FR872457(A)	申请公布日期	1942.06.10
申请号	FRD872457	申请日期	1941.05.24
申请人	FERNSEH G.M.B.H.	发明人
分类号	G01R27/32	主分类号	G01R27/32
代理机构		代理人
主权项
地址

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