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经营范围
发明名称
DISPERSIVE DELAY LINES
摘要
申请公布号
GB1475288(A)
申请公布日期
1977.06.01
申请号
GB19730045669
申请日期
1973.09.29
申请人
MARCONI CO LTD
发明人
分类号
H03H9/40;(IPC1-7):H03H9/30
主分类号
H03H9/40
代理机构
代理人
主权项
地址
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