发明名称 Dart sharpener
摘要 An apparatus for sharpening a dart includes a sharpening stone and a dart holder. The apparatus simultaneously translates the dart to be sharpened across the stone while rotating it against the stone in a direction opposed to the translation. An accurate, precision point, superior to any provided by hand sharpening, is imparted to on the dart because it is held, in the apparatus, at a constant angle with respect to the sharpening stone as it is being simultaneously rotated and translated thereacross.
申请公布号 US5199224(A) 申请公布日期 1993.04.06
申请号 US19920919719 申请日期 1992.07.24
申请人 ALUOTTO, PETER A. 发明人 ALUOTTO, PETER A.
分类号 B24B19/16;B24D15/00;F41B5/14 主分类号 B24B19/16
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