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发明名称
Keyboard instrument
摘要
申请公布号
US5031500(A)
申请公布日期
1991.07.16
申请号
US19890366748
申请日期
1989.06.15
申请人
YAMAHA CORPORATION
发明人
KOIKE, TATSUHIRO;MISAWA, YOICHI;SUZUKI, TOSHIYUKI
分类号
G10H1/00;G10H1/32
主分类号
G10H1/00
代理机构
代理人
主权项
地址
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