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发明名称
LINE QUALITY DETECTING METHOD
摘要
申请公布号
JPH04123525(A)
申请公布日期
1992.04.23
申请号
JP19900242672
申请日期
1990.09.14
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
HONDA SHUNJI;KUBOTA SHUJI;MORIKURA MASAHIRO;KATO SHUZO
分类号
H04L1/00;H03M13/23;H04L25/02;H04L29/14
主分类号
H04L1/00
代理机构
代理人
主权项
地址
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