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发明名称
STUDY DEVICE ON ELECTRICAL ENGINEERING
摘要
申请公布号
SU1704151(A1)
申请公布日期
1992.01.07
申请号
SU19884488298
申请日期
1988.07.14
申请人
NIKOLAEV ANATOLIJ G,SU;POLYANSKIJ VLADIMIR,SU
发明人
NIKOLAEV ANATOLIJ G,SU;POLYANSKIJ VLADIMIR I,SU
分类号
G09B23/18
主分类号
G09B23/18
代理机构
代理人
主权项
地址
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