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经营范围
发明名称
TEACHING AID IN NAVIGATION
摘要
申请公布号
SU1647624(A1)
申请公布日期
1991.05.07
申请号
SU19894695630
申请日期
1989.05.23
申请人
MIKHAJLIN ALEKSANDR B,SU;PTUSHKIN ANATOLIJ,SU;IVANOV LEONID D,SU
发明人
MIKHAJLIN ALEKSANDR B,SU;PTUSHKIN ANATOLIJ I,SU;IVANOV LEONID D,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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