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发明名称
DISPOSITIF DE COMMUTATION POUR INSTALLATIONS DE TELECOMMUNICATION DONT LES VOIES DE LIAISON PEUVENT ETRE UTILISEES POUR DIFFERENTES SORTES DE TRANSMISSION D'INFORMATIONS
摘要
申请公布号
BE749426(A1)
申请公布日期
1970.10.23
申请号
BED749426
申请日期
1970.04.23
申请人
SIEMENS A.G., A BERLIN ET A MUNICH (ALLEMAGNE),
发明人
分类号
H04M11/06;(IPC1-7):H04Q/
主分类号
H04M11/06
代理机构
代理人
主权项
地址
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