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经营范围
发明名称
Communications systems
摘要
申请公布号
US4933935(A)
申请公布日期
1990.06.12
申请号
US19890330947
申请日期
1989.03.27
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
ADAMS, JOHN L.
分类号
G06F13/00;H04L12/28;H04L12/43;H04L12/54;H04L12/56
主分类号
G06F13/00
代理机构
代理人
主权项
地址
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