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发明名称
SOUND-VOLUME CONTROL DEVICE FOR AUTOMATIC PIANO
摘要
申请公布号
JPH05113788(A)
申请公布日期
1993.05.07
申请号
JP19910143626
申请日期
1991.06.14
申请人
YAMAHA CORP
发明人
ISOZAKI YOSHIMASA
分类号
G10F1/02
主分类号
G10F1/02
代理机构
代理人
主权项
地址
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