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发明名称
A telephone network and a dial plan therefor
摘要
申请公布号
GB0111297(D0)
申请公布日期
2001.06.27
申请号
GB20010011297
申请日期
2001.05.09
申请人
3COM CORPORATION
发明人
分类号
H04Q3/00;H04Q3/62
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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