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发明名称
Schaltungsanordnung für Fernmeldevermittlungsanlagen, insbesondere von Fernsprechanlagen, mit Prüfstromkreisen für Zwischenleitungsprüfung
摘要
申请公布号
AT299323(B)
申请公布日期
1972.06.12
申请号
AT19690003331
申请日期
1969.04.03
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04Q3/00;(IPC1-7):H04M3/00
主分类号
H04Q3/00
代理机构
代理人
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