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发明名称
Compensated electromagnetic devices
摘要
申请公布号
US2988673(A)
申请公布日期
1961.06.13
申请号
US19570634028
申请日期
1957.01.14
申请人
HAGEN CORPORATION
发明人
HARKINS ROBERT E.
分类号
H01F7/06
主分类号
H01F7/06
代理机构
代理人
主权项
地址
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