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发明名称
Methodology of teaching arithmetics and teaching aids kit enabling methodology implementation
摘要
申请公布号
PL385537(A1)
申请公布日期
2010.01.04
申请号
PL20080385537
申请日期
2008.06.26
申请人
OSI&NACUTE,SKI ANTONI
发明人
OSI&NACUTE,SKI ANTONI
分类号
G09B19/02
主分类号
G09B19/02
代理机构
代理人
主权项
地址
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