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发明名称
Оправка для изготовления криволинейной стенки кожуха центробежных вентиляторов
摘要
申请公布号
SU33480(A1)
申请公布日期
1933.12.31
申请号
SU19300069946
申请日期
1930.05.13
申请人
FRENKEL M.I.
发明人
FRENKEL M.I.
分类号
F04D29/00
主分类号
F04D29/00
代理机构
代理人
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地址
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