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发明名称
Tube à décharges électriques
摘要
申请公布号
FR835820(A)
申请公布日期
1939.01.04
申请号
FRD835820
申请日期
1938.03.28
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J43/28
主分类号
H01J43/28
代理机构
代理人
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地址
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