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发明名称
SYSTEMS FOR DATA TRANSMISSION OVER A PUBLIC TELEPHONE NETWORK
摘要
申请公布号
GB2128451(B)
申请公布日期
1986.02.19
申请号
GB19830025832
申请日期
1983.09.27
申请人
* SODECO-SAIA AG
发明人
JOSEPH * RUEFF
分类号
H04M17/02;(IPC1-7):H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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