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发明名称
Прибор для вычерчивания спиралей
摘要
申请公布号
SU28023(A1)
申请公布日期
1932.10.31
申请号
SU19310094091
申请日期
1931.08.28
申请人
GUMILEVSKIJ V.F.
发明人
GUMILEVSKIJ V.F.
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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