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发明名称
CLASSROOM DEMONSTRATION DEVICE FOR STUDYING STRENGTH OF MATERIALS
摘要
申请公布号
SU1672517(A1)
申请公布日期
1991.08.23
申请号
SU19894720854
申请日期
1989.07.18
申请人
MARIJSKIJ POLT I IM.A.M.GORKOGO
发明人
KRUTSKIKH NIKOLAJ A,SU
分类号
G09B23/06
主分类号
G09B23/06
代理机构
代理人
主权项
地址
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