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经营范围
发明名称
RING LAN
摘要
申请公布号
JPH04274638(A)
申请公布日期
1992.09.30
申请号
JP19910036284
申请日期
1991.03.01
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
TSUJI YUKARI;TEIDA HIROAKI;KISHIMOTO HIDEO;KURIHARA KAZUMASA
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
主权项
地址
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