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发明名称
Appareil permettant d'isoler une fraction réglable d'un courant périodique
摘要
申请公布号
FR70215(E)
申请公布日期
1959.03.25
申请号
FRD70215
申请日期
1956.01.18
申请人
发明人
JOANNON JEAN
分类号
G01R13/32
主分类号
G01R13/32
代理机构
代理人
主权项
地址
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