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经营范围
发明名称
TEACHING DEVICE
摘要
申请公布号
SU798955(A1)
申请公布日期
1981.01.23
申请号
SU19792728888
申请日期
1979.02.23
申请人
KB POLT I IM. V.V.KUJBYSHEVA
发明人
MALYAROV ANATOLIJ N,SU;ALIMPIEV ARTURIJ V,SU;SHCHEKINOV VIKTOR N,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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