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发明名称
Helikopter, hvis Løftepropeller drives rundt ved Reaktionen af udstrømmende Trykluft.
摘要
申请公布号
DK57999(C)
申请公布日期
1940.09.16
申请号
DKD57999
申请日期
1938.04.19
申请人
JACOB CHRISTIAN HANSEN-ELLEHAMMER
发明人
JACOB CHRISTIAN HANSEN-ELLEHAMMER
分类号
主分类号
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