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发明名称
Прибор для вычерчивания кривых второго порядка
摘要
申请公布号
SU104357(A1)
申请公布日期
1955.11.30
申请号
SU19510453359
申请日期
1951.03.24
申请人
VISHNEVSKIJ A.L.
发明人
VISHNEVSKIJ A.L.
分类号
B43L11/02
主分类号
B43L11/02
代理机构
代理人
主权项
地址
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