发明名称 Fastener having recess useable with multiple drivers and method of manufacture
摘要 A fastener is described having a head formed with a recess which accommodates a square head driver, symmetrical drivers, such as PHILLIPS(TM) style drivers, asymmetrical style cross head drivers, such as POZIDRIV(R) style drivers, and combination square and cross drivers without compromising performance of the drivers.
申请公布号 US2003159551(A1) 申请公布日期 2003.08.28
申请号 US20020153547 申请日期 2002.05.21
申请人 HUGHES BARRY J. 发明人 HUGHES BARRY J.
分类号 B25B15/00;F16B23/00;(IPC1-7):B25B23/00 主分类号 B25B15/00
代理机构 代理人
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