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发明名称
RING-LIKE DATA COMMUNICATION SYSTEM
摘要
申请公布号
JPH0653979(A)
申请公布日期
1994.02.25
申请号
JP19920205612
申请日期
1992.07.31
申请人
NEC CORP
发明人
TANUMA HIROYUKI
分类号
H04L12/42;H04L12/437;(IPC1-7):H04L12/42
主分类号
H04L12/42
代理机构
代理人
主权项
地址
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