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发明名称
Improvements in electric discharge tubes
摘要
申请公布号
GB427609(A)
申请公布日期
1935.04.26
申请号
GB19340029999
申请日期
1934.10.19
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J17/06
主分类号
H01J17/06
代理机构
代理人
主权项
地址
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