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经营范围
发明名称
Superheterodyne receiver
摘要
申请公布号
US1968259(A)
申请公布日期
1934.07.31
申请号
US19320584435
申请日期
1932.01.02
申请人
RADIO CORPORATION OF AMERICA
发明人
POSTHUMUS KLAAS;WEYERS THEODORUS JOSEPHUS
分类号
H03D1/10
主分类号
H03D1/10
代理机构
代理人
主权项
地址
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