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发明名称
EDUCATIONAL AID IN STRENGTH OF MATERIALS
摘要
申请公布号
SU1592860(A1)
申请公布日期
1990.09.15
申请号
SU19864000318
申请日期
1986.01.02
申请人
OD INZH-STR INSTITUT
发明人
BARDANOV YURIJ M,SU;VILGA MARK A,SU
分类号
G09B23/06
主分类号
G09B23/06
代理机构
代理人
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地址
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