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发明名称
STRINGED INSTRUMENT TUTOR
摘要
申请公布号
GB9215719(D0)
申请公布日期
1992.09.09
申请号
GB19920015719
申请日期
1992.07.23
申请人
COOK ADRIAN A.;BOWEN DAVID H. A.
发明人
分类号
G09B15/00
主分类号
G09B15/00
代理机构
代理人
主权项
地址
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