发明名称 Drill chuck key bearings
摘要 A drill chuck key bearing includes an elongated support member having a pair of legs pivotally connected to the opposing ends thereof. The support member has an aperture therethrough, through which the shank of a drill chuck key is rotatably and slidably mounted. The legs have their free ends bent towards one another so as to engage a pair of opposing apertures in the drill chuck when the key is engaged with the drill chuck.
申请公布号 US5069585(A) 申请公布日期 1991.12.03
申请号 US19900605976 申请日期 1990.10.29
申请人 WENZ, JR., OTTO D. 发明人 WENZ, JR., OTTO D.
分类号 B23B31/12;B25B33/00 主分类号 B23B31/12
代理机构 代理人
主权项
地址