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发明名称
Dispositif de propulsion et de direction pour les hélicoptères
摘要
申请公布号
FR1016239(A)
申请公布日期
1952.11.05
申请号
FRD1016239
申请日期
1950.04.13
申请人
发明人
THELLE THORSTEIN
分类号
B64C27/04
主分类号
B64C27/04
代理机构
代理人
主权项
地址
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