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发明名称
LOOP NETWORK EQUIPMENT
摘要
申请公布号
JPH03108840(A)
申请公布日期
1991.05.09
申请号
JP19890247540
申请日期
1989.09.21
申请人
NEC CORP
发明人
ITSUGAYA KINJI
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
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地址
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