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发明名称
Disposition de couplage pour l'exécution d'une sélection à combinaisons sur les deux conducteurs d'une ligne de raccordement servant au trafic de télécommunication en particulier au trafic téléphonique
摘要
申请公布号
FR1080545(A)
申请公布日期
1954.12.09
申请号
FRD1080545
申请日期
1953.02.13
申请人
SIEMENS & HALSKE A. G.
发明人
分类号
H04M1/515;H04Q3/00
主分类号
H04M1/515
代理机构
代理人
主权项
地址
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