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发明名称
Abstuetzung des Elektrodensystems von Elektronenroehren mit federnden Glimmerblaettchen
摘要
申请公布号
DE716375(C)
申请公布日期
1942.01.17
申请号
DE1935R092695D
申请日期
1935.02.22
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J19/52
主分类号
H01J19/52
代理机构
代理人
主权项
地址
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