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发明名称
MUSIC TEACHING APPARATUS AND METHOD.
摘要
申请公布号
EP0227665(A4)
申请公布日期
1987.11.23
申请号
EP19850904189
申请日期
1985.08.08
申请人
BEATTIE, JOHN ROBERT
发明人
BEATTIE, JOHN ROBERT
分类号
G09B15/02
主分类号
G09B15/02
代理机构
代理人
主权项
地址
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