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发明名称
Construction de filtres électriques
摘要
申请公布号
FR843523(A)
申请公布日期
1939.07.05
申请号
FRD843523
申请日期
1938.09.15
申请人
LIGNES TELEGRAPHIQUES ET TELEPHONIQUES
发明人
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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