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发明名称
Virtual private networks
摘要
申请公布号
GB2278757(A)
申请公布日期
1994.12.07
申请号
GB19940010627
申请日期
1994.05.26
申请人
* GPT LIMITED
发明人
PHILIP JOHN * WILLIAMS
分类号
H04Q3/58;H04M3/00;H04Q3/00;H04Q3/62;(IPC1-7):H04Q3/00
主分类号
H04Q3/58
代理机构
代理人
主权项
地址
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