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经营范围
发明名称
Music teaching game
摘要
申请公布号
GB2028564(A)
申请公布日期
1980.03.05
申请号
GB19780033244
申请日期
1978.08.14
申请人
CHILDS L
发明人
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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