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发明名称
Oscillatory system
摘要
申请公布号
US2114114(A)
申请公布日期
1938.04.12
申请号
US19350048306
申请日期
1935.11.05
申请人
RADIO CORPORATION OF AMERICA
发明人
ROBERTS WALTER VAN B.
分类号
H01J25/76;H03B9/01
主分类号
H01J25/76
代理机构
代理人
主权项
地址
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