发明名称 Magnetic driving tool having a telescopic pipe
摘要 A driving tool includes a barrel and a handle secured to one end of the barrel for rotating the barrel. The barrel includes an engaging opening formed in the other end for engaging with a tool bit and a fastener. A telescopic pipe is engaged in the bore of the barrel and has one end secured to the handle and has a magnetic member secured to the other end for allowing the magnetic member to be extended outward of the barrel to attract and to fetch the fasteners engaged in a deep hole of an object.
申请公布号 US5878637(A) 申请公布日期 1999.03.09
申请号 US19970957968 申请日期 1997.10.21
申请人 LIU, KUO ZHEN 发明人 LIU, KUO ZHEN
分类号 B25B9/00;B25B11/00;B25B23/12;(IPC1-7):B25B23/08 主分类号 B25B9/00
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