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发明名称
BROADBAND TRUNK LOOPING NETWORK
摘要
申请公布号
JPH05102981(A)
申请公布日期
1993.04.23
申请号
JP19910256476
申请日期
1991.10.03
申请人
TOSHIBA CORP
发明人
KOKKYO TOMOO
分类号
H04L12/42
主分类号
H04L12/42
代理机构
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