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发明名称
TEACHING APPLIANCE
摘要
申请公布号
SU1601621(A1)
申请公布日期
1990.10.23
申请号
SU19884477030
申请日期
1988.08.23
申请人
KRASNODARSKIJ VNII PO MONTAZHNYM SP STROITELNYM RABOTAM
发明人
TUSHEV LEONID V,SU;KOTOV KLIMENTIJ K,SU;DERGILEV ANATOLIJ V,SU;IGNATUSHCHENKO LEV K,SU;NEZHIVOJ ALEKSANDR F,SU
分类号
G09B19/24
主分类号
G09B19/24
代理机构
代理人
主权项
地址
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