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发明名称
DISPOSITIF DE TRANSMISSION DE DONNEES FONCTIONNANT EN DUPLEX ET EN MODULATION DE FREQUENCE
摘要
申请公布号
BE818490(A1)
申请公布日期
1974.12.02
申请号
BE19740147287
申请日期
1974.08.05
申请人
发明人
分类号
H04L27/12;H04L5/14;H04L27/10;(IPC1-7):H04M/
主分类号
H04L27/12
代理机构
代理人
主权项
地址
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