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发明名称
Teaching aid for musical appreciation
摘要
申请公布号
CZ928(U1)
申请公布日期
1993.12.15
申请号
CZ19930001235U
申请日期
1990.04.27
申请人
KOZAK ANTONIN
发明人
KOZAK ANTONIN
分类号
G09B15/00;G09B1/06;G09B15/02;(IPC1-7):G09B015/00;G09B001/06
主分类号
G09B15/00
代理机构
代理人
主权项
地址
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