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发明名称
Airscrew
摘要
申请公布号
US2432673(A)
申请公布日期
1947.12.16
申请号
US19420464086
申请日期
1942.10.31
申请人
ROTOL LIMITED
发明人
MILNER HARRY LAWLEY
分类号
B64C11/18
主分类号
B64C11/18
代理机构
代理人
主权项
地址
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