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发明名称
Прибор для вычерчивания спиралей
摘要
申请公布号
SU24133(A1)
申请公布日期
1931.11.30
申请号
SU19290040233
申请日期
1929.02.06
申请人
MIKHAJLOV D.A.
发明人
MIKHAJLOV D.A.
分类号
B43L11/06
主分类号
B43L11/06
代理机构
代理人
主权项
地址
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