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经营范围
发明名称
Air deflectors for airplane propellers
摘要
申请公布号
GB652441(A)
申请公布日期
1951.04.25
申请号
GB19480013505
申请日期
1948.05.19
申请人
EDWARD SHELLBERG
发明人
分类号
B64C11/14
主分类号
B64C11/14
代理机构
代理人
主权项
地址
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