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发明名称
Magnetic screw drivers
摘要
申请公布号
US2782822(A)
申请公布日期
1957.02.26
申请号
US19530356695
申请日期
1953.05.22
申请人
MAGNA DRIVER CORPORATION
发明人
CLARK FREDERICK G.
分类号
B25B23/12
主分类号
B25B23/12
代理机构
代理人
主权项
地址
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