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发明名称
Automatically programmed piano
摘要
申请公布号
US3403589(A)
申请公布日期
1968.10.01
申请号
US19650497210
申请日期
1965.10.18
申请人
ROBERT FRIED
发明人
FRIED ROBERT
分类号
G09B15/08
主分类号
G09B15/08
代理机构
代理人
主权项
地址
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