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发明名称
Waterproof a textbook
摘要
본 고안은 상기와 같은 문제점을 해결하기 위해 안출한 것으로, 종래의 교과서를 개량하여 방수성을 형성함으로써, 교과서의 대각선 끝의 찌끄러기들이 없어지고 질좋고 편하게 쓸수있는데 그 목적을 가지고 있다.
申请公布号
KR20160001939(U)
申请公布日期
2016.06.07
申请号
KR20140008741U
申请日期
2014.11.27
申请人
권오민
发明人
권오민
分类号
B42D1/00
主分类号
B42D1/00
代理机构
代理人
主权项
地址
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