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发明名称
Permeability tuning system
摘要
申请公布号
US2322722(A)
申请公布日期
1943.06.22
申请号
US19420444974
申请日期
1942.05.29
申请人
RADIO CORPORATION OF AMERICA
发明人
WENTWORTH CHANDLER
分类号
H01F21/06
主分类号
H01F21/06
代理机构
代理人
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