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发明名称
Locking screwdriver
摘要
A locking screwdriver which engages and locks to the head of a screw preventing unseating of the screwdriver from the screw during screw removal and firmly holding and guiding self-tapping screws during their placement.
申请公布号
US6997086(B1)
申请公布日期
2006.02.14
申请号
US20050217715
申请日期
2005.09.02
申请人
GRAHAM NEIL JOHN
发明人
GRAHAM NEIL JOHN
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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