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发明名称
TELECOMMUNICATION SYSTEM NETWORKS
摘要
申请公布号
GB1489742(A)
申请公布日期
1977.10.26
申请号
GB19770015357
申请日期
1974.10.17
申请人
POST OFFICE
发明人
分类号
H04Q11/04;(IPC1-7):H04B3/46
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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