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发明名称
DATA COMMUNICATION SYSTEM
摘要
申请公布号
JPH022256(A)
申请公布日期
1990.01.08
申请号
JP19880145598
申请日期
1988.06.15
申请人
NEC CORP
发明人
NAKAZATO MIE
分类号
H04L12/40
主分类号
H04L12/40
代理机构
代理人
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