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发明名称
Устройство для повышения коэффициента полезного действия гребных винтов с насадками
摘要
申请公布号
SU80595(A1)
申请公布日期
1949.11.30
申请号
SU19490393531
申请日期
1949.03.17
申请人
FOMKINSKIJ L.I.
发明人
FOMKINSKIJ L.I.
分类号
B63H5/15;B63H1/28;B63H11/103
主分类号
B63H5/15
代理机构
代理人
主权项
地址
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