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经营范围
发明名称
Filter Circuit
摘要
申请公布号
GB1153267(A)
申请公布日期
1969.05.29
申请号
GB19680010716
申请日期
1968.03.05
申请人
HITACHI LTD.
发明人
分类号
H03H11/34
主分类号
H03H11/34
代理机构
代理人
主权项
地址
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