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经营范围
发明名称
TEACHING APPARATUS
摘要
申请公布号
SU809321(A2)
申请公布日期
1981.02.28
申请号
SU19782616058
申请日期
1978.05.10
申请人
KB POLT I IM. V.V.KUJBYSHEVA
发明人
MALYAROV ANATOLIJ N,SU;ALIMPIEV ARTURIJ V,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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