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发明名称
COMMUNICATION LINE CONTROL SYSTEM FOR RING NETWORK
摘要
申请公布号
JPH0324841(A)
申请公布日期
1991.02.01
申请号
JP19890158409
申请日期
1989.06.22
申请人
HIRAYAMA KATSUHIKO
发明人
HIRAYAMA KATSUHIKO
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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