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发明名称
MUSICAL INSTRUMENT FOR LEARNING
摘要
申请公布号
KR800001009(Y1)
申请公布日期
1980.07.05
申请号
KR19790002874U
申请日期
1979.05.21
申请人
HONG JIN HI
发明人
HONG JIN HI
分类号
G09B15/00;(IPC1-7):G09B15/00
主分类号
G09B15/00
代理机构
代理人
主权项
地址
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