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发明名称
Perfectionnements aux transformateurs basse fréquence
摘要
申请公布号
FR696977(A)
申请公布日期
1931.01.10
申请号
FRD696977
申请日期
1930.05.17
申请人
发明人
GIALLULY ELIE-MARCEL DE
分类号
H01F19/02
主分类号
H01F19/02
代理机构
代理人
主权项
地址
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