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发明名称
Improvements in aeroplane and like propellers
摘要
申请公布号
GB642126(A)
申请公布日期
1950.08.30
申请号
GB19470016357
申请日期
1947.06.20
申请人
MIGUEL ALEXANDRE
发明人
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
主权项
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