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发明名称
MESSAGE BASED SIGNALLING SYSTEM
摘要
申请公布号
GB2207835(B)
申请公布日期
1991.06.05
申请号
GB19870018623
申请日期
1987.08.06
申请人
* STC PLC
发明人
GEOFFREY * HARLAND;JOHN ANTHONY WEEKS * BUTCHER
分类号
H04J3/12;H04Q3/00;H04Q11/04
主分类号
H04J3/12
代理机构
代理人
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