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发明名称
Perfectionnements aux hélices à pas variable
摘要
申请公布号
FR866262(A)
申请公布日期
1941.07.21
申请号
FRD866262
申请日期
1939.07.13
申请人
发明人
LEPERE EUGENE MARIE GEORGES;CLEMENT PAUL ROBERT
分类号
B64C11/36
主分类号
B64C11/36
代理机构
代理人
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