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发明名称
Dispositif d'identification des notes de musique
摘要
申请公布号
FR1204300(A)
申请公布日期
1960.01.25
申请号
FRD1204300
申请日期
1958.10.27
申请人
发明人
ERICKSEN HELEN HOYDAL
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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