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发明名称
KEYBOARD OPERATION LEARNING SYSTEM
摘要
申请公布号
JPH0192783(A)
申请公布日期
1989.04.12
申请号
JP19870250150
申请日期
1987.10.02
申请人
NEC CORP
发明人
NISHIDA KAZUAKI
分类号
G09B13/00;G06F3/02
主分类号
G09B13/00
代理机构
代理人
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