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经营范围
发明名称
DATA COMMUNICATION SYSTEM
摘要
申请公布号
GB8403989(D0)
申请公布日期
1984.03.21
申请号
GB19840003989
申请日期
1984.02.15
申请人
PLESSEY CO PLC
发明人
分类号
H04L12/26
主分类号
H04L12/26
代理机构
代理人
主权项
地址
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