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经营范围
发明名称
Perfectionnements aux hélices à pas variable
摘要
申请公布号
FR1209007(A)
申请公布日期
1960.02.26
申请号
FRD1209007
申请日期
1951.09.28
申请人
ROTOL LIMITED
发明人
分类号
B64C11/38
主分类号
B64C11/38
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代理人
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