发明授权
- 专利标题: Pencil sharpener
- 专利标题(中): 卷笔刀
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申请号: US12938035申请日: 2010-11-02
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公开(公告)号: US08118071B2公开(公告)日: 2012-02-21
- 发明人: Charles Sued , Aron Abramson
- 申请人: Charles Sued , Aron Abramson
- 代理机构: Garcia-Zamor IP Law
- 代理商 Ruy M. Garcia-Zamor
- 主分类号: B43L23/00
- IPC分类号: B43L23/00 ; B23Q15/00
摘要:
A pencil sharpener that facilitates the sharpening of pencils by any one or more of the following: preventing injury; automatically sharpening pencils without manual manipulation; providing status indicators during sharpening; and/or allowing varying degrees of sharpness to be selected.
公开/授权文献
- US20110041956A1 Pencil Sharpener 公开/授权日:2011-02-24
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