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发明名称
SWITCHING SYSTEMS
摘要
申请公布号
GB8505942(D0)
申请公布日期
1985.04.11
申请号
GB19850005942
申请日期
1985.03.07
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
分类号
H04Q3/52;H04Q11/00
主分类号
H04Q3/52
代理机构
代理人
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