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发明名称
SCHALTUNGSANORDNUNG ZUM ERKENNEN VON NOTRUFEN AUF TEILNEHMERANSCHLUSSLEITUNGEN UND DEREN UMSCHALTUNG VON DER VERMITTLUNGSSTELLE ZU EINRICHTUNGEN EINES NOTRUFSYSTEMS
摘要
申请公布号
DD148135(B1)
申请公布日期
1983.11.02
申请号
DD19790217879
申请日期
1979.12.20
申请人
发明人
分类号
H04M11/04
主分类号
H04M11/04
代理机构
代理人
主权项
地址
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