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发明名称
A filterr unit
摘要
申请公布号
GB9718608(D0)
申请公布日期
1997.11.05
申请号
GB19970018608
申请日期
1997.09.02
申请人
NEC CORPORATION
发明人
分类号
H01P1/20;H03H7/01;H03J5/24;H04B1/10
主分类号
H01P1/20
代理机构
代理人
主权项
地址
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