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经营范围
发明名称
Многолопастный пропеллер
摘要
申请公布号
SU36983(A1)
申请公布日期
1934.05.31
申请号
SU19280026927
申请日期
1928.04.24
申请人
VAPROG EKSPLUATATSIYA PATENTOV;O-VO S OGR. OTV. DLYA EKSPLOATATSII IZOBRETENIJ VAKUUM-PROPELLEROV
发明人
O. GRUMPELT
分类号
B63H1/14
主分类号
B63H1/14
代理机构
代理人
主权项
地址
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