首页>
外国专利>
Automatic pen that tells you whether you're holding the writing instrument right
Automatic pen that tells you whether you're holding the writing instrument right
展开▼
机译:自动笔,告诉您是否正确握住书写工具
展开▼
页面导航
摘要
著录项
相似文献
摘要
This invention is an automatic pen that tells you whether you hold a writing instrument correctly. If you hold the pen correctly, children will be able to learn how to hold the writing instrument naturally by inducing curiosity by emitting light emitting diodes with a cheerful melody. .
展开▼