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发明名称
Dispositif assurant, dans une installation de commutation automatique, la discrimination entre abonnés appartenant à des catégories différentes.
摘要
申请公布号
CH275634(A)
申请公布日期
1951.05.31
申请号
CHD275634
申请日期
1947.09.17
申请人
COMPAGNIE INDUSTRIELLE DES TELEPHONES
发明人
TELEPHONES COMPAGNIE INDUSTRIELLE DES
分类号
H04L12/00;H04M15/08
主分类号
H04L12/00
代理机构
代理人
主权项
地址
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