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发明名称
Perfectionnements aux hélices à pas variable en vol
摘要
申请公布号
FR798233(A)
申请公布日期
1936.05.12
申请号
FRD798233
申请日期
1935.02.14
申请人
SOCIETE D'ETUDES POUR L'AVIATION
发明人
分类号
B64C11/44
主分类号
B64C11/44
代理机构
代理人
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地址
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