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经营范围
发明名称
Pianoforte action, particularly for small pianos
摘要
申请公布号
GB526651(A)
申请公布日期
1940.09.23
申请号
GB19390009280
申请日期
1939.03.24
申请人
KARL MANNBORG
发明人
分类号
G10C3/16
主分类号
G10C3/16
代理机构
代理人
主权项
地址
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