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发明名称
Anordning ved Signalmodtagere til selektiv Signalmodtagning ved Vekselstrømssignalering over Telefonlinier eller lignende Linier.
摘要
申请公布号
DK65067(C)
申请公布日期
1946.11.18
申请号
DK19440000603
申请日期
1944.02.29
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
主分类号
代理机构
代理人
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地址
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