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发明名称
Amplifying system
摘要
申请公布号
US1915629(A)
申请公布日期
1933.06.27
申请号
US19280328350
申请日期
1928.12.26
申请人
RADIO CORPORATION OF AMERICA
发明人
THOMPSON LINCOLN
分类号
H03F3/22;H03F3/28
主分类号
H03F3/22
代理机构
代理人
主权项
地址
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