发明名称 Chuck
摘要 A drill holding chuck is provided having particular utility for use with a drill sharpening tool. The chuck includes an outer tubular housing having cylindrical ends rotably receivable in bearing members to provide spaced support for the chuck and the jaw closing force is applied to the chuck jaws about midway of their length.
申请公布号 US4093247(A) 申请公布日期 1978.06.06
申请号 US19760707026 申请日期 1976.07.20
申请人 DAREX CORPORATION 发明人 BERNARD, ARTHUR ALEXANDER;BERNARD, RICHARD ALLEN
分类号 B23B31/12;B24B3/30;(IPC1-7):B23B31/12 主分类号 B23B31/12
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