发明授权
- 专利标题： Crown tightening tool
- 专利标题（中）： 皇冠紧固工具
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申请号： US10020949申请日： 2001-12-19
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公开(公告)号： US06739216B2公开(公告)日： 2004-05-25
- 发明人: Kimiko Oyabu
- 申请人： Kimiko Oyabu
- 优先权： JP2000-395801 20001226; JP2001-264047 20010831
- 主分类号： G04D300
- IPC分类号： G04D300
摘要：
A crown tightening tool is constituted by an engaging part which can be engaged with a crown projected form a watch body of a wristwatch, and a handle part which is engaged with the engaging part and rotates the engaging part. The engaging part is formed by grooves to engage and rotate the crown. The crown tightening tool can be worn by a user as an accessory.
公开/授权文献
- US20020078797A1 Crown tightening tool 公开/授权日：2002-06-27
信息查询
