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发明名称
CIRCUITRY FOR PROVIDING AND CONNECTING THE RINGING VOLTAGE FOR SUBSCRIBER STATIONS IN A TIME DIVISION MULTIPLEX EXCHANGE
摘要
申请公布号
DE3472349(D1)
申请公布日期
1988.07.28
申请号
DE19843472349
申请日期
1984.08.20
申请人
SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUNCHEN
发明人
LECHNER, ROBERT, DIPL.-ING.;DRESCHER, MANFRED, DIPL.-ING.
分类号
H04M19/02;H04Q11/04;(IPC1-7):H04Q11/04
主分类号
H04M19/02
代理机构
代理人
主权项
地址
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