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发明名称
A device for picking up and/or retaining small ferrous articles
摘要
申请公布号
GB732096(A)
申请公布日期
1955.06.15
申请号
GB19530034194
申请日期
1953.12.09
申请人
GEORGE SUDALL
发明人
分类号
H01F7/02
主分类号
H01F7/02
代理机构
代理人
主权项
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