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发明名称
Perfectionnements aux conducteurs concentriques
摘要
申请公布号
FR48103(E)
申请公布日期
1937.10.25
申请号
FRD48103
申请日期
1936.09.04
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H01B11/18
主分类号
H01B11/18
代理机构
代理人
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