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发明名称
Perfectionnements aux dispositifs contrôlant le voltage des sources d'énergie électrique
摘要
申请公布号
FR874537(A)
申请公布日期
1942.08.10
申请号
FRD874537
申请日期
1939.05.16
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
分类号
G05F1/52
主分类号
G05F1/52
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代理人
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