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发明名称
Perfectionnements apportés aux transformateurs à rapport de transformation variable
摘要
申请公布号
FR719583(A)
申请公布日期
1932.02.08
申请号
FRD719583
申请日期
1931.07.01
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H01F27/40
主分类号
H01F27/40
代理机构
代理人
主权项
地址
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