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发明名称
MEJORAS EN LAS AERONAVES CON ALAS AUTOGIRATORIAS
摘要
申请公布号
ES140861(A1)
申请公布日期
1936.04.01
申请号
ES19610001408
申请日期
1936.01.15
申请人
CIERVA, JUAN DE LA
发明人
分类号
(IPC1-7):B64
主分类号
(IPC1-7):B64
代理机构
代理人
主权项
地址
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