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发明名称
Fernmeldesystem,in dem im Bedarfsfalle eine Breitbandkanalverbindung neben einer Fernsprechverbindung aufgebaut werden kann
摘要
申请公布号
DE2223539(A1)
申请公布日期
1972.11.30
申请号
DE19722223539
申请日期
1972.05.15
申请人
TELEFONAKTIEBOLAGET LM ERICSSON
发明人
CARL,DIPL.-ING. BJOERK,HAROLD JOHN;ERIK,DIPL.-ING. CAROC,TORBEN
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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