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发明名称
EDUCATIONAL APPLIANCE ON GEOMETRY
摘要
申请公布号
SU688915(A1)
申请公布日期
1979.09.30
申请号
SU19782604261
申请日期
1978.04.10
申请人
KRAMATORSKIJ INDUSTRIALNYJ INSTITUT
发明人
SHAMRAJ VIKTOR V,SU;POPOVA TAMARA G,SU;SOBUR ANATOLIJ F,SU;SIDOROVICH EMMA M,SU
分类号
G09B23/04;B43L13/14;(IPC1-7):G09B23/04
主分类号
G09B23/04
代理机构
代理人
主权项
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