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发明名称
OPTICAL NETWORKS
摘要
申请公布号
GB8912014(D0)
申请公布日期
1989.07.12
申请号
GB19890012014
申请日期
1989.05.25
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
分类号
H04J14/00;H04J14/02;H04N7/22
主分类号
H04J14/00
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