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发明名称
DEVICE FOR TEACHING PLAYING THE PIANO OR THE LIKE
摘要
申请公布号
RU2016418(C1)
申请公布日期
1994.07.15
申请号
SU19914936123
申请日期
1991.05.13
申请人
ODINTSOVA SVETLANA A
发明人
ODINTSOVA SVETLANA A
分类号
G09B15/02;(IPC1-7):G09B15/02
主分类号
G09B15/02
代理机构
代理人
主权项
地址
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