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发明名称
Piano actions
摘要
申请公布号
US3151516(A)
申请公布日期
1964.10.06
申请号
US19620183100
申请日期
1962.03.28
申请人
ARTHUR BERNSTEIN
发明人
BERNSTEIN ARTHUR
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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