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发明名称
Method of making core pieces
摘要
申请公布号
US3213727(A)
申请公布日期
1965.10.26
申请号
US19630319008
申请日期
1963.10.25
申请人
ALLEGHENY LUDLUM STEEL CORPORATION
发明人
SCHWENNESEN DONALD O.
分类号
H01F27/245;H01F41/02
主分类号
H01F27/245
代理机构
代理人
主权项
地址
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