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发明名称
ELECTRIC DISCHARGE TUBES
摘要
申请公布号
IE15424(L)
申请公布日期
1938.07.25
申请号
IED15424
申请日期
1938.01.25
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J5/52;H01J9/24;H01J19/66;(IPC1-7):H01J5/52
主分类号
H01J5/52
代理机构
代理人
主权项
地址
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