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发明名称
Apparatus for sing training
摘要
申请公布号
KR100525466(B1)
申请公布日期
2005.11.02
申请号
KR20030002570
申请日期
2003.01.11
申请人
发明人
分类号
G11B31/02;(IPC1-7):G11B31/02
主分类号
G11B31/02
代理机构
代理人
主权项
地址
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