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发明名称
AIRCRAFT AND MULTIPLE FLIPPER WINGS
摘要
申请公布号
CA319869(A)
申请公布日期
1932.02.16
申请号
CAD319869
申请日期
申请人
THE SIKORSKY AVIATION CORPORATION
发明人
IGOR I. SIKORSKY
分类号
主分类号
代理机构
代理人
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