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发明名称
Tube à décharges électriques
摘要
申请公布号
FR722730(A)
申请公布日期
1932.03.24
申请号
FRD722730
申请日期
1931.09.09
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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