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发明名称
TELECOMMUNICATION SWITCHING SYSTEM
摘要
申请公布号
GB8523583(D0)
申请公布日期
1985.10.30
申请号
GB19850023583
申请日期
1985.09.24
申请人
STC PLC
发明人
分类号
H04L25/49;H04M3/24;H04Q1/22;H04Q11/04;(IPC1-7):H04M3/24
主分类号
H04L25/49
代理机构
代理人
主权项
地址
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