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发明名称
DIGITAL FILTERS
摘要
申请公布号
GB8510969(D0)
申请公布日期
1985.06.05
申请号
GB19850010969
申请日期
1985.04.30
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
分类号
H03H17/04
主分类号
H03H17/04
代理机构
代理人
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