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发明名称
Access link testing in a dial-up telecommunication network
摘要
申请公布号
GB2288099(B)
申请公布日期
1998.12.23
申请号
GB19950005927
申请日期
1995.03.23
申请人
* GPT LIMITED
发明人
GEOFFREY * CHOPPING
分类号
H04M3/08;H04M3/22;H04M3/30;(IPC1-7):H04M3/30
主分类号
H04M3/08
代理机构
代理人
主权项
地址
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