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经营范围
发明名称
Instrument musical à clavier immatériel et repéreur de position
摘要
申请公布号
FR975927(A)
申请公布日期
1951.03.12
申请号
FRD975927
申请日期
1948.09.21
申请人
发明人
DUCOUT MARCEL-STANISLAS
分类号
G10H1/34
主分类号
G10H1/34
代理机构
代理人
主权项
地址
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