Perfectionnements aux lampes multigrilles,申请号FRD826161-传众专利搜索

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发明名称	Perfectionnements aux lampes multigrilles
摘要
申请公布号	FR826161(A)	申请公布日期	1938.03.24
申请号	FRD826161	申请日期	1937.09.01
申请人	TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M.B.H.	发明人
分类号	H01J21/02	主分类号	H01J21/02
代理机构		代理人
主权项
地址

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