Perfectionnements apportés aux tubes à décharges électriques,申请号FRD707965-传众专利搜索

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发明名称	Perfectionnements apportés aux tubes à décharges électriques
摘要
申请公布号	FR707965(A)	申请公布日期	1931.07.17
申请号	FRD707965	申请日期	1930.12.18
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	H01J1/00;H01J17/04	主分类号	H01J1/00
代理机构		代理人
主权项
地址

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