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发明名称
Mouse pad for language learning device
摘要
申请公布号
KR200396990(Y1)
申请公布日期
2005.09.28
申请号
KR20050019949U
申请日期
2005.07.08
申请人
发明人
分类号
G06F3/039;(IPC1-7):G06F3/033
主分类号
G06F3/039
代理机构
代理人
主权项
地址
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