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发明名称
Fraction educating apparatus
摘要
본 발명은 분수교육장치에 관한 것으로, 본 발명의 실시예에 의하면, 장치 자체의 무게를 획기적으로 줄여서 유아들이 다루기에 쉬울 뿐만 아니라, 유아들이 장치를 쉽게 분리, 결합할 수 있는 효과가 있다.
申请公布号
KR101588114(B1)
申请公布日期
2016.01.25
申请号
KR20140039118
申请日期
2014.04.02
申请人
전용복
发明人
전용복
分类号
G09B19/02;G09B23/02
主分类号
G09B19/02
代理机构
代理人
主权项
地址
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