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发明名称
Perfectionnements apportés à la fabrication des tubes à décharges électriques
摘要
申请公布号
FR852032(A)
申请公布日期
1940.01.22
申请号
FRD852032
申请日期
1939.03.23
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J19/00
主分类号
H01J19/00
代理机构
代理人
主权项
地址
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