外观设计
- 专利标题: Keyboard practice aid
- 专利标题(中): 键盘练习辅助
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申请号: US29331708申请日: 2009-01-30
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公开(公告)号: USD609268S1公开(公告)日: 2010-02-02
- 设计人: Jeremy Russell , Richard Hall , Tim Flood
- 申请人: Jeremy Russell , Richard Hall , Tim Flood
- 申请人地址: GB West Yorkshire
- 专利权人: Scalerail Limited
- 当前专利权人: Scalerail Limited
- 当前专利权人地址: GB West Yorkshire
- 代理机构: Myers Bigel Sibley & Sajovec
- 优先权: EP000983259-0001 20080801; EP000983259-0002 20080801
- LOC分类号: 17-01