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发明名称
Учебная модель по электротехнике
摘要
申请公布号
SU41750(A1)
申请公布日期
1935.02.28
申请号
SU19340145838
申请日期
1934.04.15
申请人
SHVEDOV N.N.
发明人
SHVEDOV N.N.
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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