发明名称 Learning device for colors
摘要 The present invention relates to a learning device for colors and, more specifically, to a learning device for colors which allows a user to easily recognize the mixture state of three primary colors using one or more magenta balls, yellow balls, and cyan balls; and allows teachers to effectively teach infants or young students the principles of various colors using the balls.
申请公布号 KR101397208(B1) 申请公布日期 2014.05.20
申请号 KR20120114622 申请日期 2012.10.16
申请人 发明人
分类号 G09B19/00;G09B23/22 主分类号 G09B19/00
代理机构 代理人
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