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发明名称
DATA COMMUNICATION SYSTEM
摘要
申请公布号
JPH02222338(A)
申请公布日期
1990.09.05
申请号
JP19890041674
申请日期
1989.02.23
申请人
NEC CORP
发明人
FUKUDA SHUICHI
分类号
H04L29/08;H04L12/40
主分类号
H04L29/08
代理机构
代理人
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