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经营范围
发明名称
AUTOMATED CLASS FOR TEACHING AND EXAMINING PUPIL
摘要
申请公布号
SU723651(A1)
申请公布日期
1980.03.25
申请号
SU19782591676
申请日期
1978.03.17
申请人
GARKIN VLADIMIR ,SU;EFIMOV PETR G,SU;KULBAK LEONID F,SU;NOVOSELTSEV VLADIMIR S,SU
发明人
GARKIN VLADIMIR ,SU;EFIMOV PETR G,SU;KULBAK LEONID F,SU;NOVOSELTSEV VLADIMIR S,SU
分类号
G09B7/07;(IPC1-7):G09B7/07
主分类号
G09B7/07
代理机构
代理人
主权项
地址
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