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发明名称
Screw retaining screw driver
摘要
申请公布号
US2523557(A)
申请公布日期
1950.09.26
申请号
US19460706692
申请日期
1946.10.30
申请人
CARSON ARTHUR W
发明人
CARSON ARTHUR W.
分类号
B25B23/10
主分类号
B25B23/10
代理机构
代理人
主权项
地址
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