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发明名称
LANGUAGE TEACHING EQUIPMENT
摘要
申请公布号
KR840000574(Y1)
申请公布日期
1984.04.04
申请号
KR19820005058U
申请日期
1982.06.28
申请人
WANG YOUNG-KU
发明人
WANG YOUNG-KU
分类号
G09B19/06;(IPC1-7):G09B19/06
主分类号
G09B19/06
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代理人
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