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经营范围
发明名称
INTERMEDIATE FREQUENCY AMPLIFIER
摘要
申请公布号
CA405334(A)
申请公布日期
1942.06.09
申请号
CAD405334
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
PAUL F. G. HOLST;LOREN R. KIRKWOOD
分类号
主分类号
代理机构
代理人
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