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发明名称
Variable bandwidth filter
摘要
申请公布号
GB2328814(A)
申请公布日期
1999.03.03
申请号
GB19970018607
申请日期
1997.09.02
申请人
* SONY UNITED KINGDOM LIMITED
发明人
DAVID * BUTLER
分类号
H03D7/16;(IPC1-7):H03H11/04
主分类号
H03D7/16
代理机构
代理人
主权项
地址
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