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发明名称
Vorrichtung zum Feststellen von Propellern, insbesondere Flugzeugpropellern
摘要
申请公布号
DE504527(C)
申请公布日期
1930.08.06
申请号
DE1929L074672D
申请日期
1929.03.29
申请人
PIERRE LEVASSEUR
发明人
分类号
B64C11/04
主分类号
B64C11/04
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