Perfectionnement aux tubes de braun,申请号FRD904915-传众专利搜索

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发明名称	Perfectionnement aux tubes de braun
摘要
申请公布号	FR904915(A)	申请公布日期	1945.11.20
申请号	FRD904915	申请日期	1944.06.07
申请人	OPTA RADIO AKTIENGESELLSCHAFT	发明人	GOBRECHT HEINRICH
分类号	H01J29/00	主分类号	H01J29/00
代理机构		代理人
主权项
地址

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