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经营范围
发明名称
NETWORK EXPANSION SYSTEM
摘要
申请公布号
JPH01161946(A)
申请公布日期
1989.06.26
申请号
JP19870318824
申请日期
1987.12.18
申请人
HITACHI LTD
发明人
NAKAYASHIKI SUSUMU;KASHIO JIRO;HARAKAWA TAKESHI;WADA HIROYUKI;TOTSUGI YOSHINORI
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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