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发明名称
Anordning til Forøgelse af Propellers Fremdrivningsvirkningsgrad.
摘要
申请公布号
DK44063(C)
申请公布日期
1931.04.27
申请号
DKD44063
申请日期
1929.07.30
申请人
LEO COSTANIEVICH
发明人
LEO COSTANIEVICH
分类号
主分类号
代理机构
代理人
主权项
地址
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