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发明名称
Airscrew
摘要
申请公布号
US2389760(A)
申请公布日期
1945.11.27
申请号
US19420458773
申请日期
1942.09.18
申请人
ROTOL LIMITED
发明人
BRIERLEY WALTER
分类号
B64C11/20
主分类号
B64C11/20
代理机构
代理人
主权项
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