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发明名称
Perfectionnements aux résistances électriques à grilles
摘要
申请公布号
FR675296(A)
申请公布日期
1930.02.07
申请号
FRD675296
申请日期
1929.05.16
申请人
SOCIETE D'USINAGE DE MATERIEL ELECTRIQUE
发明人
分类号
H01C3/10
主分类号
H01C3/10
代理机构
代理人
主权项
地址
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