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发明名称
Чертежный прибор для построения теней на архитектурных проектах
摘要
申请公布号
SU88167(A1)
申请公布日期
1950.11.30
申请号
SU19500415702
申请日期
1950.04.03
申请人
GOLDIN I.D.
发明人
GOLDIN I.D.
分类号
B43L13/14
主分类号
B43L13/14
代理机构
代理人
主权项
地址
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