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经营范围
发明名称
Variable condenser
摘要
申请公布号
US2085838(A)
申请公布日期
1937.07.06
申请号
US19320613817
申请日期
1932.05.27
申请人
RADIO CORPORATION OF AMERICA
发明人
USSELMAN GEORGE L.
分类号
H04B1/03
主分类号
H04B1/03
代理机构
代理人
主权项
地址
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