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发明名称
DATA SWITCHING NODES
摘要
申请公布号
GB8913869(D0)
申请公布日期
1989.08.02
申请号
GB19890013869
申请日期
1989.06.16
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
分类号
主分类号
代理机构
代理人
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地址
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