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发明名称
Electron-multiplying amplifier valve
摘要
申请公布号
GB505556(A)
申请公布日期
1939.05.08
申请号
GB19370027383
申请日期
1937.10.08
申请人
RADIOAKTIENGESELLSCHAFT D. S. LOEWE
发明人
分类号
H01J43/22
主分类号
H01J43/22
代理机构
代理人
主权项
地址
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