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发明名称
Disposition de couplage pour limiter le temps de test, en particulier dans les instalations téléphoniques avec service par sélecteurs
摘要
申请公布号
FR1072974(A)
申请公布日期
1954.09.17
申请号
FRD1072974
申请日期
1953.03.14
申请人
SIEMENS & HALSKE A. G.
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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