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发明名称
Annular wing aircraft
摘要
申请公布号
US3049320(A)
申请公布日期
1962.08.14
申请号
US19580747874
申请日期
1958.07.11
申请人
FLETCHER CHARLES J
发明人
FLETCHER CHARLES J.
分类号
B64C29/00;B64C39/06
主分类号
B64C29/00
代理机构
代理人
主权项
地址
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