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发明名称
PERMANENT MAGNETS
摘要
申请公布号
US3450580(A)
申请公布日期
1969.06.17
申请号
USD3450580
申请日期
1966.09.09
申请人
LEVICK SWIFT & SONS LTD.
发明人
DENNIS HADFIELD;JOHN HARRISON
分类号
C22C19/07;C22C38/10;H01F1/04;(IPC1-7):H01F1/04
主分类号
C22C19/07
代理机构
代理人
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地址
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