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发明名称
VOCAL TRAINING SYSTEM USING VOCAL PRACTIC
摘要
申请公布号
KR20130087444(A)
申请公布日期
2013.08.06
申请号
KR20130009225
申请日期
2013.01.28
申请人
LEE, SEUNG WOO
发明人
LEE, SEUNG WOO
分类号
A61F5/58
主分类号
A61F5/58
代理机构
代理人
主权项
地址
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