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经营范围
发明名称
Piano à double clavier
摘要
申请公布号
FR689025(A)
申请公布日期
1930.09.01
申请号
FRD689025
申请日期
1930.01.28
申请人
发明人
FRASCANI ARTURO
分类号
G10C3/12
主分类号
G10C3/12
代理机构
代理人
主权项
地址
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