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发明名称
DEVICE FOR GROUP LANGUAGE STUDY AND SYSTEM THEREFOR
摘要
申请公布号
JPH10254339(A)
申请公布日期
1998.09.25
申请号
JP19970052955
申请日期
1997.03.07
申请人
NEC CORP;TOKYO TSUSHIN KOGYO KK
发明人
MURAMOTO MASAYO;KINOSHITA HARUHIKO;ABE YOSHIO;AYAGAMI KAZUHIDE
分类号
G09B5/08;G09B5/06;(IPC1-7):G09B5/08
主分类号
G09B5/08
代理机构
代理人
主权项
地址
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