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经营范围
发明名称
SINUSOIDAL KEYBOARD
摘要
申请公布号
PL265713(A1)
申请公布日期
1988.03.31
申请号
PL19870265713
申请日期
1987.05.15
申请人
发明人
分类号
G10C;(IPC1-7):G10C/
主分类号
G10C
代理机构
代理人
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地址
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