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发明名称
DEVICE FOR CHECKING KNOWLEDGE LEVEL OF OPERATOR
摘要
申请公布号
SU1256077(A2)
申请公布日期
1986.09.07
申请号
SU19853851235
申请日期
1985.01.31
申请人
ROTSHTEJN ALEKSANDR P,SU;KUZNETSOV PETR D,SU;KULEV ALEKSANDR A,SU;MOKINA NATALYA M,SU
发明人
ROTSHTEJN ALEKSANDR P,SU;KUZNETSOV PETR D,SU;KULEV ALEKSANDR A,SU;MOKINA NATALYA M,SU
分类号
G09B9/00
主分类号
G09B9/00
代理机构
代理人
主权项
地址
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