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发明名称
Système de commutation automatique utilisable en téléphonie automatique
摘要
申请公布号
FR72720(E)
申请公布日期
1960.07.22
申请号
FR19570736556
申请日期
1957.04.16
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
HEMEL ALBERT
分类号
H04Q3/42
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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