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发明名称
PACKET AND CIRCUIT SWITCHED COMMUNICATIONS NETWORK
摘要
申请公布号
EP0160443(B1)
申请公布日期
1991.06.19
申请号
EP19850302596
申请日期
1985.04.12
申请人
NORTHERN TELECOM LIMITED
发明人
JAIN, PREM CHAND;ENNS, FREDERICK
分类号
H04Q11/00;H04L12/64
主分类号
H04Q11/00
代理机构
代理人
主权项
地址
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