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发明名称
Schaltungsanordnung für Fernsprechanlagen zur Kennzeichnung von Störungen beim Verbindungsaufbau
摘要
申请公布号
AT212389(B)
申请公布日期
1960.12.12
申请号
AT19590004283
申请日期
1959.06.10
申请人
SIEMENS & HALSKE GESELLSCHAFT M. B. H.
发明人
DIPL. ING. EDWIN MACHACEK
分类号
主分类号
代理机构
代理人
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