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发明名称
TWO-WIRE FULL DUPLEX MODEM WITH CD TRANSMISSION
摘要
申请公布号
JPS6251857(A)
申请公布日期
1987.03.06
申请号
JP19850191653
申请日期
1985.08.30
申请人
NEC CORP
发明人
MASUDA HIROYUKI
分类号
H04L29/10;H04L5/14;H04L13/00;H04L29/00
主分类号
H04L29/10
代理机构
代理人
主权项
地址
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