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发明名称
PUPIL EXAMINING DEVICE
摘要
申请公布号
SU780024(A1)
申请公布日期
1980.11.15
申请号
SU19782687667
申请日期
1978.11.23
申请人
UCHEBNAYA OK ORGANIZATSIYA LE TEKHNIKUMA AVIAPRIBOROSTROENIYA AVTOMATIKI
发明人
PETROV ALEKSANDR S,SU
分类号
G09B7/02;(IPC1-7):G09B7/02
主分类号
G09B7/02
代理机构
代理人
主权项
地址
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