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发明名称
Radio frequency transmission circuit
摘要
申请公布号
US1910059(A)
申请公布日期
1933.05.23
申请号
US19310543924
申请日期
1931.06.12
申请人
RADIO CORPORATION OF AMERICA
发明人
ROBERTS WALTER VAN B.
分类号
H01P1/213
主分类号
H01P1/213
代理机构
代理人
主权项
地址
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