发明申请
- 专利标题： Pencil sharpener with eraser
- 专利标题（中）： 铅笔刀与橡皮擦
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申请号： US11899533申请日： 2007-09-06
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公开(公告)号： US20090067912A1公开(公告)日： 2009-03-12
- 发明人: Stuart David Farnworth , Jonathan A. Lee , Javier Verdura
- 申请人： Stuart David Farnworth , Jonathan A. Lee , Javier Verdura
- 主分类号： B43L23/00
- IPC分类号： B43L23/00
摘要：
A pencil sharpener case has a rotatable cover which covers a mechanical pencil sharpener. In one position, the cover may be rotatably retracted to provide access to the pencil sharpener. The case also mounts an eraser which may be used when the pencil sharpener is covered.
公开/授权文献
- US07886395B2 Pencil sharpener with eraser 公开/授权日：2011-02-15
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