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经营范围
发明名称
Improvements in and relating to magnets
摘要
申请公布号
GB774996(A)
申请公布日期
1957.05.15
申请号
GB19550005617
申请日期
1955.02.24
申请人
VARIAN ASSOCIATES
发明人
分类号
H01F7/20
主分类号
H01F7/20
代理机构
代理人
主权项
地址
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