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发明名称
HAMMERING APPARATUS FOR UPRIGHT PIANO
摘要
申请公布号
KR100634235(B1)
申请公布日期
2006.10.16
申请号
KR20030055431
申请日期
2003.08.11
申请人
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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