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发明名称
COMMUNICATION SYSTEM
摘要
申请公布号
GB8727847(D0)
申请公布日期
1987.12.31
申请号
GB19870027847
申请日期
1987.11.27
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
分类号
H04J1/00;H04J3/00;H04J4/00;H04J14/02;H04J14/08;H04J99/00
主分类号
H04J1/00
代理机构
代理人
主权项
地址
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