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发明名称
LOOPBACK SYSTEM
摘要
申请公布号
JPH02230841(A)
申请公布日期
1990.09.13
申请号
JP19890051347
申请日期
1989.03.03
申请人
NEC COMMUN SYST LTD
发明人
SHINOZUKA TAKASHI
分类号
H04L12/40;H04L12/437
主分类号
H04L12/40
代理机构
代理人
主权项
地址
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