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发明名称
VISUAL AID ON VECTOR ALGEBRA
摘要
申请公布号
SU1670693(A1)
申请公布日期
1991.08.15
申请号
SU19894741901
申请日期
1989.07.26
申请人
GORLOVSKIJ DO POLT INSTITUTA
发明人
POPOV YURIJ N,SU;SAK LYUDMILA S,SU;BYKOVSKIKH GENNADIJ V,SU
分类号
G09B23/00
主分类号
G09B23/00
代理机构
代理人
主权项
地址
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