发明名称 STUDY NOTES OF WORK-STUDY TRIP FOR MATHEMATICS
摘要 The present invention relates to a study notebook for mathematics experience trip. The notebook improves the quality of experience study of students using improved memory power and reasoning power. Particularly, multiple content blocks and subtitles are formed in ordinary paper through printing. Holes are formed in papers printed with various contents or a notebook. The papers are bound using a spring.
申请公布号 KR20130134440(A) 申请公布日期 2013.12.10
申请号 KR20120057947 申请日期 2012.05.31
申请人 SIGMA TOUR CO., LTD. 发明人 KIM, EUN SOON;CHOI, SOO IL
分类号 G09B19/00;B42D15/00 主分类号 G09B19/00
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