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经营范围
发明名称
ELECTRICAL FILTER
摘要
申请公布号
GB9200228(D0)
申请公布日期
1992.03.11
申请号
GB19920000228
申请日期
1992.01.07
申请人
GEC-MARCONI LIMITED
发明人
分类号
H01P1/205
主分类号
H01P1/205
代理机构
代理人
主权项
地址
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