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发明名称
RING-TYPE LAN
摘要
申请公布号
JPH0440132(A)
申请公布日期
1992.02.10
申请号
JP19900148051
申请日期
1990.06.06
申请人
YAMAHA CORP
发明人
TSURUMI KANEHISA
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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