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发明名称
학습용 자
摘要
<p>본 고안은 아동들이 학습용으로 사용하는 직선자, 삼각자 또는 분도기등의 중앙부에 직경을 점차 크게한 결속관을 돌출 되게 부착하여서 보관이나 휴대시에는 결속관의 직경이 가장 적은 자를 하단에 두고 점차 직경이 큰 결속관을 갖인 자를 차레로 포개어서 결속시킴으로서 휴대가 간편할 뿐 아니라 분실의 열려를 줄이고, 사용시에는 자의 결속관이 손잡이의 역활을 하여서 아동들이 편리하게 사용할 수 있도록 된 것이다.</p>
申请公布号
KR19980010608(U)
申请公布日期
1998.05.15
申请号
KR19960024044U
申请日期
1996.08.09
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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