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发明名称
VARIABLE BAND PASS FILTER CIRCUITS
摘要
申请公布号
GB1470197(A)
申请公布日期
1977.04.14
申请号
GB19740049313
申请日期
1974.11.14
申请人
SONY CORP
发明人
分类号
H04B1/16;H03G5/14;H03H9/54;H03H9/56;H03H9/58;H03H9/60;(IPC1-7):H03H7/12
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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