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发明名称
Elektronen-Entladungseinrichtung
摘要
申请公布号
DE838472(C)
申请公布日期
1952.05.08
申请号
DE1950R001585
申请日期
1950.04.26
申请人
RADIO CORPORATION OF AMERICA
发明人
JOHNSON RALPH E.
分类号
H01J29/02;H01J31/36;H01J43/08
主分类号
H01J29/02
代理机构
代理人
主权项
地址
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