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发明名称
Perfectionnements apportés aux changeurs de fréquence des machines électriques, notamment aux rotors
摘要
申请公布号
FR1128963(A)
申请公布日期
1957.01.14
申请号
FRD1128963
申请日期
1955.03.30
申请人
发明人
GURVIEZ ELZEAS ALEXANDRE
分类号
H02K47/24
主分类号
H02K47/24
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代理人
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