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发明名称
Communication systems
摘要
申请公布号
GB2055025(A)
申请公布日期
1981.02.18
申请号
GB19790026268
申请日期
1979.07.27
申请人
MARCONI CO LTD
发明人
分类号
H04B1/30;H04B1/68;H04M11/06;(IPC1-7):H04J1/02
主分类号
H04B1/30
代理机构
代理人
主权项
地址
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