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发明名称
Magnetic material
摘要
申请公布号
US1792483(A)
申请公布日期
1931.02.17
申请号
US19290367634
申请日期
1929.05.31
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ELMEN GUSTAF W.
分类号
C22C19/05
主分类号
C22C19/05
代理机构
代理人
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