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发明名称
Mischroehre mit einer Kathode, einer Anode und wenigstens fuenf dazwischenliegenden Elektroden
摘要
申请公布号
DE923021(C)
申请公布日期
1955.01.31
申请号
DE1940N002506D
申请日期
1940.10.16
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
ALMA GERRIT HENDRIK PETRUS;LANDSBERGEN HENDRICUS JOHANNES
分类号
H01J19/42;H03D7/10
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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