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经营范围
发明名称
Perfectionnements aux systèmes téléphoniques automatiques
摘要
申请公布号
FR72753(E)
申请公布日期
1960.07.22
申请号
FR19570752699
申请日期
1957.11.29
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
HJERTSTRAND SVANTE LENNART
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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