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经营范围
发明名称
DIGITAL SIGNAL REGENERATOR
摘要
申请公布号
US5197082(A)
申请公布日期
1993.03.23
申请号
US19890349641
申请日期
1989.05.10
申请人
NEC CORPORATION
发明人
UDA, YOSHIHIRO;TAKAHASHI, NOBUAKI
分类号
H04L25/40;H04L7/027;H04L25/24
主分类号
H04L25/40
代理机构
代理人
主权项
地址
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