Perfectionnements aux dispositifs indicateurs électriques,申请号FRD865847-传众专利搜索

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发明名称	Perfectionnements aux dispositifs indicateurs électriques
摘要
申请公布号	FR865847(A)	申请公布日期	1941.06.05
申请号	FRD865847	申请日期	1939.08.30
申请人		发明人	MONGE GERARD DE
分类号	H01J31/14	主分类号	H01J31/14
代理机构		代理人
主权项
地址

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