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发明名称
Elektronenstrahlroehre mit einem oder mehreren Elektrodensystemen zur Erzeugung eines gerichteten Elektronenbuendels
摘要
申请公布号
DE852423(C)
申请公布日期
1952.10.16
申请号
DE1944N002240D
申请日期
1944.04.18
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GIER JOHANNES DE
分类号
H01J29/82
主分类号
H01J29/82
代理机构
代理人
主权项
地址
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