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发明名称
Elektronenroehre, die ausser Kathode, wenigstens einem Steuergitter und Anode, wenigstens eine zwischen Kathode und einem Steuergitter liegende Beschleunigungselektrode hat
摘要
申请公布号
DE742591(C)
申请公布日期
1943.12.08
申请号
DE1938N041668D
申请日期
1938.02.12
申请人
PHILIPS PATENTVERWALTUNG G.M.B.H.
发明人
ADRIANUS JOHANNES WILHELMUS MARIE VAN OVERBEEK
分类号
H01J19/00
主分类号
H01J19/00
代理机构
代理人
主权项
地址
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