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经营范围
发明名称
Permanent magnet
摘要
申请公布号
US3168686(A)
申请公布日期
1965.02.02
申请号
US19590851770
申请日期
1959.11.09
申请人
NORTH AMERICAN PHILIPS COMPANY, INC.
发明人
KING HEWSON NICHOLAS GRAHAM;MURPHY BERNARD THOMAS
分类号
H01F7/02
主分类号
H01F7/02
代理机构
代理人
主权项
地址
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