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发明名称
Perfectionnements apportés aux conducteurs comportant un isolement par espace d'air
摘要
申请公布号
FR831741(A)
申请公布日期
1938.09.13
申请号
FRD831741
申请日期
1938.01.06
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H01B11/18
主分类号
H01B11/18
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代理人
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地址
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