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发明名称
Циркуль для деления линии в золотом сечении
摘要
申请公布号
SU58369(A1)
申请公布日期
1940.11.30
申请号
SU19390029323
申请日期
1939.12.29
申请人
MOROZ A.M.
发明人
MOROZ A.M.
分类号
B43L13/00
主分类号
B43L13/00
代理机构
代理人
主权项
地址
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