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发明名称
Improvements in or relating to electric discharge tubes
摘要
申请公布号
GB367300(A)
申请公布日期
1932.02.18
申请号
GB19310022184
申请日期
1931.08.05
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J40/04
主分类号
H01J40/04
代理机构
代理人
主权项
地址
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