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发明名称
Annular wing flying machines
摘要
申请公布号
US2971724(A)
申请公布日期
1961.02.14
申请号
US19560575731
申请日期
1956.04.03
申请人
ZBOROWSKI HELMUT PH G A R VON
发明人
HELMUT PH. G. A. R. VON ZBOROWSKI
分类号
B64C29/02;B64C39/06
主分类号
B64C29/02
代理机构
代理人
主权项
地址
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