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经营范围
发明名称
Improvements in or relating to a field member consisting of a permanent magnet of cylindrical or annular shape
摘要
申请公布号
GB612186(A)
申请公布日期
1948.11.09
申请号
GB19460014918
申请日期
1946.05.17
申请人
MAGNETOS LUCIFER
发明人
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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