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发明名称
Учебное пособие по механике
摘要
申请公布号
SU41751(A1)
申请公布日期
1935.02.28
申请号
SU19340145940
申请日期
1934.04.17
申请人
RYAZANOV I.A.
发明人
RYAZANOV I.A.
分类号
G09B23/08
主分类号
G09B23/08
代理机构
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