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经营范围
发明名称
Perfectionnements aux systèmes de communication à longue distance
摘要
申请公布号
FR1352495(A)
申请公布日期
1964.02.14
申请号
FR19630929877
申请日期
1963.03.30
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
WRIGHT ESMOND PHILIP GOODWIN
分类号
H04J3/17;H04Q1/444
主分类号
H04J3/17
代理机构
代理人
主权项
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