Perfectionnements aux tubes à rayons cathodiques en particulier pour la mesure des angles de phase,申请号FRD1001724-传众专利搜索

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发明名称	Perfectionnements aux tubes à rayons cathodiques en particulier pour la mesure des angles de phase
摘要
申请公布号	FR1001724(A)	申请公布日期	1952.02.27
申请号	FRD1001724	申请日期	1946.06.25
申请人		发明人	BELLEC FRANCOIS-MARIE-LOUIS GREYFIE DE
分类号	G01R25/00;H01J31/12	主分类号	G01R25/00
代理机构		代理人
主权项
地址

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