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经营范围
发明名称
DATA COMMUNICATION SYSTEM
摘要
申请公布号
JPH04268851(A)
申请公布日期
1992.09.24
申请号
JP19910050773
申请日期
1991.02.22
申请人
NEC CORP
发明人
NAWATA HIDE
分类号
H04L1/00;H04L27/18
主分类号
H04L1/00
代理机构
代理人
主权项
地址
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