Float the ball
- 专利权人:
- William J. Barclift
- 发明人:
- William J. Barclift
- 申请号：
- US14963539
- 公开号：
- US20170165148A1
- 申请日:
- 2015.12.09
- 申请国别(地区):
- US
- 年份:
- 2017
- 代理人:
- 摘要：
- The subject matter disclosed herein relates to targeting young people to enjoy a fun activity while improving their eye power. The principals of the game include eye exercises based on previous procedures.
- 来源网站：
- 中国工程科技知识中心
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