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发明名称
Digital line unit for connecting subscriber terminals to a digital switching exchange
摘要
申请公布号
EP0477614(B1)
申请公布日期
1999.02.24
申请号
EP19910114938
申请日期
1991.09.04
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
JUGEL, ALFRED;SCHMIDT, LOTHAR
分类号
H04Q11/04;(IPC1-7):H04Q11/04;H04M11/06
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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