Dispositif de mesure de fréquences,申请号FRD875225-传众专利搜索

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发明名称	Dispositif de mesure de fréquences
摘要
申请公布号	FR875225(A)	申请公布日期	1942.09.11
申请号	FRD875225	申请日期	1941.05.09
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人
分类号	G01R23/00	主分类号	G01R23/00
代理机构		代理人
主权项
地址

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