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发明名称
Communication network system
摘要
申请公布号
US4672373(A)
申请公布日期
1987.06.09
申请号
US19840683500
申请日期
1984.12.19
申请人
HITACHI, LTD.
发明人
MORI, KINJI;MIYAMOTO, SHOJI;IHARA, HIROKAZU
分类号
H04L12/46;(IPC1-7):H04Q11/04
主分类号
H04L12/46
代理机构
代理人
主权项
地址
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