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发明名称
Perfectionnements aux câbles à conducteurs concentriques
摘要
申请公布号
FR904034(A)
申请公布日期
1945.10.24
申请号
FRD904034
申请日期
1943.12.07
申请人
SOCIETE D'ETUDES POUR LIAISONS TELEPHONIQUES ET TELEGRAPHIQUES A LONGUE DISTANCE
发明人
分类号
H01B11/18
主分类号
H01B11/18
代理机构
代理人
主权项
地址
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