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摘要
申请公布号
US2269345(A)
申请公布日期
1942.01.06
申请号
US19400313594
申请日期
1940.01.12
申请人
GENERAL ELECTRIC COMPANY
发明人
NICKLE CLIFFORD A.;HOWE GOODWIN H.
分类号
H01F7/02
主分类号
H01F7/02
代理机构
代理人
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