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经营范围
发明名称
LINE MONITOR
摘要
申请公布号
JPH01218246(A)
申请公布日期
1989.08.31
申请号
JP19880042090
申请日期
1988.02.26
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
MIZUSHIMA HIRONARI
分类号
H04L29/14;H04L13/00
主分类号
H04L29/14
代理机构
代理人
主权项
地址
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