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发明名称
Alternate ring restoration technique
摘要
申请公布号
EP0822678(B1)
申请公布日期
2005.11.30
申请号
EP19970112083
申请日期
1997.07.15
申请人
AT&T CORP.
发明人
ESLAMBOLCHI, HOSSEIN
分类号
H04J3/08;H04J3/00;H04L12/437;H04L29/14;(IPC1-7):H04J3/08;H04L12/46;H04J3/14
主分类号
H04J3/08
代理机构
代理人
主权项
地址
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