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发明名称
SIGNAL TRANSMISSION SYSTEM
摘要
申请公布号
GB8400496(D0)
申请公布日期
1984.02.15
申请号
GB19840000496
申请日期
1984.01.10
申请人
NEC CORPORATION
发明人
分类号
H03M5/20;H04B14/04;H04K1/00;H04K1/02;H04L25/49;(IPC1-7):H04L25/49
主分类号
H03M5/20
代理机构
代理人
主权项
地址
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