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发明名称
Hélice à pas automatiquement variable
摘要
申请公布号
FR791838(A)
申请公布日期
1935.12.18
申请号
FRD791838
申请日期
1934.09.19
申请人
SOCIETE D'ETUDES POUR L'AVIATION
发明人
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
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