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发明名称
Dispositif de protection pour système électrique polyphasé
摘要
申请公布号
FR909293(A)
申请公布日期
1946.05.03
申请号
FRD909293
申请日期
1945.02.15
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H02H3/34
主分类号
H02H3/34
代理机构
代理人
主权项
地址
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