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经营范围
发明名称
Perfectionnements aux hélices aériennes à pas variable en vol
摘要
申请公布号
FR845466(A)
申请公布日期
1939.08.24
申请号
FRD845466
申请日期
1938.04.29
申请人
PIERRE LEVASSEUR CONSTRUCTIONS AERONAUTIQUES
发明人
分类号
B64C11/34
主分类号
B64C11/34
代理机构
代理人
主权项
地址
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