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发明名称
Tube à décharges avec plus de trois électrodes, et montage de ce tube pour l'amplification d'oscillations électriques
摘要
申请公布号
FR723787(A)
申请公布日期
1932.04.14
申请号
FRD723787
申请日期
1931.10.02
申请人
EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG
发明人
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
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