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发明名称
COMMUNICATION NETWORK
摘要
申请公布号
GB1565490(A)
申请公布日期
1980.04.23
申请号
GB19780019338
申请日期
1978.05.12
申请人
IBM CORP
发明人
分类号
H04J4/00;H04B7/15;H04B7/212;H04J3/00;H04J3/06;(IPC1-7):H04J4/00
主分类号
H04J4/00
代理机构
代理人
主权项
地址
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