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经营范围
发明名称
Audio frequency transistor amplifier
摘要
申请公布号
GB1004532(A)
申请公布日期
1965.09.15
申请号
GB19620047830
申请日期
1962.12.18
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H03F3/185
主分类号
H03F3/185
代理机构
代理人
主权项
地址
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