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发明名称
Perfectionnement aux appareils électriques comportant un ensemble d'électrodes, par exemple aux tubes à décharges
摘要
申请公布号
FR711592(A)
申请公布日期
1931.09.12
申请号
FRD711592
申请日期
1931.02.19
申请人
N.-V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J5/12;H01J19/66
主分类号
H01J5/12
代理机构
代理人
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