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发明名称
AUDIO SYSTEM WITH LANGUAGE EXERCISE FUNCTION
摘要
申请公布号
EP0699329(A1)
申请公布日期
1996.03.06
申请号
EP19930910435
申请日期
1993.05.18
申请人
YOON, MAN HEE
发明人
YOON, MAN HEE
分类号
G09B5/04;G09B5/06;G09B19/06;G11B27/00;G11B27/028;G11B27/10;(IPC1-7):G09B5/06
主分类号
G09B5/04
代理机构
代理人
主权项
地址
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