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发明名称
KEYBOARD DEVICE
摘要
申请公布号
JPS63197992(A)
申请公布日期
1988.08.16
申请号
JP19870030790
申请日期
1987.02.12
申请人
YAMAHA CORP
发明人
SUGIMOTO KEIJI
分类号
G10B3/12;G10H1/32;G10H1/34
主分类号
G10B3/12
代理机构
代理人
主权项
地址
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