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经营范围
发明名称
A FAULT MODEL TO BE USABLE OF EDUCATION
摘要
申请公布号
KR100617977(B1)
申请公布日期
2006.08.23
申请号
KR20050038214
申请日期
2005.05.07
申请人
CHOI, JONG NAM
发明人
CHOI, JONG NAM
分类号
G09B23/40
主分类号
G09B23/40
代理机构
代理人
主权项
地址
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