发明名称 Extension apparatus between tool and tool bit
摘要 An extension apparatus is provided for connecting a tool with a tool bit. The extension apparatus includes a driving element with a first end for engagement with the tool and a second end for engagement with the tool bit, a telescopic element inserted in the driving element, a magnet attached to the telescopic element and a barrel movably mounted on the driving element for receiving a fastener to be driven via the tool bit.
申请公布号 US6860178(B2) 申请公布日期 2005.03.01
申请号 US20030421291 申请日期 2003.04.23
申请人 WANG MEI-CHEN 发明人 WANG MEI-CHEN
分类号 B25B9/00;B25B11/00;B25B13/06;B25B15/00;B25B23/12;(IPC1-7):B25B23/16 主分类号 B25B9/00
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