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经营范围
发明名称
WORD DISPLAY SYSTEM OF LANGUAGE LEARNING MACHINE
摘要
申请公布号
JPS5657168(A)
申请公布日期
1981.05.19
申请号
JP19790133943
申请日期
1979.10.16
申请人
CANON KK
发明人
SADO ICHIROU
分类号
G09B5/04;G06F3/147;G06F17/28;G09B19/06
主分类号
G09B5/04
代理机构
代理人
主权项
地址
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