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发明名称
KEY OF AUTOMATIC KEYBOARD MUSICAL INSTRUMENT
摘要
申请公布号
JPH0419795(A)
申请公布日期
1992.01.23
申请号
JP19900125205
申请日期
1990.05.15
申请人
YAMAHA CORP
发明人
MURAMATSU SHIGERU;KAWAMURA KIYOSHI;SASAKI TSUTOMU
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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