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发明名称
Magnetic core
摘要
申请公布号
US1910227(A)
申请公布日期
1933.05.23
申请号
US19310506380
申请日期
1931.01.03
申请人
THE OHIO BRASS COMPANY
发明人
AUSTIN ARTHUR O.
分类号
H01F27/25
主分类号
H01F27/25
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代理人
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