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发明名称
PIANO FORTE HAMMER AND METHOD OF MAKING SAME
摘要
申请公布号
US5125310(A)
申请公布日期
1992.06.30
申请号
US19910657882
申请日期
1991.02.19
申请人
STEINWAY MUSICAL PROPERTIES, INC.
发明人
LOMBINO, JAMES M.
分类号
G10C3/18
主分类号
G10C3/18
代理机构
代理人
主权项
地址
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