发明名称 Flat ended double cube shaped tipped, screwdriver system
摘要 A sure grip screwdriver system comprises a shaft. The shaft has a handle end and a working end. The shaft has a working inner portion and a working outer portion. The working inner portion is adjacent to the handle end. The working outer portion is adjacent to the working end. The working outer portion further has a generally cube-shaped configuration of a first smaller size. The working inner portion further has a generally cube-shaped configuration of a second larger size. Last provided is a shaft support. The shaft support has a recess at one end to receive the handle end of the shaft.
申请公布号 US6948408(B1) 申请公布日期 2005.09.27
申请号 US20010932629 申请日期 2001.08.17
申请人 LEE HOWARD 发明人 LEE HOWARD
分类号 B25B15/00;F16B23/00;(IPC1-7):B25B15/00 主分类号 B25B15/00
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