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发明名称
Tube à décharges à atmosphère gazeuse
摘要
申请公布号
FR725479(A)
申请公布日期
1932.05.12
申请号
FRD725479
申请日期
1931.10.30
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J17/04;H01J17/52
主分类号
H01J17/04
代理机构
代理人
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地址
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