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发明名称
Filter element useful in radio circuits
摘要
申请公布号
US2549424(A)
申请公布日期
1951.04.17
申请号
US19470738166
申请日期
1947.03.29
申请人
RADIO CORPORATION OF AMERICA
发明人
CARLSON WENDELL L.;HARVEY ROBERT L.
分类号
C04B35/468;H01G2/00
主分类号
C04B35/468
代理机构
代理人
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地址
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