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发明名称
Fabrication de noyaux magnétiques pour bobines pupin et autres
摘要
申请公布号
FR857141(A)
申请公布日期
1940.08.26
申请号
FRD857141
申请日期
1939.06.30
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H01F1/22
主分类号
H01F1/22
代理机构
代理人
主权项
地址
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