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发明名称
Entladungsroehre mit wenigstens drei zwischen einer Kathode und einer aeusseren Elektrode (Anode) liegenden stromdurchlaessigen Elektroden
摘要
申请公布号
DE713575(C)
申请公布日期
1941.11.13
申请号
DE1934R094843D
申请日期
1934.03.01
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J21/02
主分类号
H01J21/02
代理机构
代理人
主权项
地址
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