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发明名称
TYPING LEARNING DEVICE
摘要
申请公布号
JPS55115080(A)
申请公布日期
1980.09.04
申请号
JP19790023128
申请日期
1979.02.27
申请人
HIRATA KEIICHI;NITTO ONKIYOU SEIKI KK
发明人
HIRATA KEIICHI;ASADA JIYUNICHI
分类号
G09B13/00
主分类号
G09B13/00
代理机构
代理人
主权项
地址
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