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发明名称
Nouvelle commande de l'angle d'attaque des pales des hélices
摘要
申请公布号
FR686214(A)
申请公布日期
1930.07.23
申请号
FRD686214
申请日期
1929.12.06
申请人
发明人
DESNEULIN ALBERT
分类号
B63H3/04
主分类号
B63H3/04
代理机构
代理人
主权项
地址
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