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发明名称
Hélice à pas variable automatique
摘要
申请公布号
FR688241(A)
申请公布日期
1930.08.20
申请号
FRD688241
申请日期
1930.01.15
申请人
发明人
POULET EUGENE
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
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