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发明名称
CONCENTRATOR SYSTEM CAPABLE OF COMPLETING EMERGENCY CALLS UNDER CONGESTED TRAFFIC
摘要
申请公布号
EP0304955(A3)
申请公布日期
1990.06.13
申请号
EP19880114048
申请日期
1988.08.29
申请人
NEC CORPORATION
发明人
SASAKI, YASUTAKA
分类号
H04W4/22;H04W28/08;H04W40/02;H04W72/04;H04W84/14;(IPC1-7):H04Q7/04;H04B7/24
主分类号
H04W4/22
代理机构
代理人
主权项
地址
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