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发明名称
DATA COMMUNICATION SYSTEM
摘要
申请公布号
JPH02217042(A)
申请公布日期
1990.08.29
申请号
JP19890037867
申请日期
1989.02.17
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
OTA HIROSHI;TOKURA NOBUYUKI
分类号
H04L13/08
主分类号
H04L13/08
代理机构
代理人
主权项
地址
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