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发明名称
Aerial device having rotor for retarding descent
摘要
申请公布号
US2978211(A)
申请公布日期
1961.04.04
申请号
US19550504166
申请日期
1955.04.27
申请人
THE KAMAN AIRCRAFT CORPORATION
发明人
WANNLUND WALLACE R.;RHODES WESLEY T.
分类号
B64D1/02
主分类号
B64D1/02
代理机构
代理人
主权项
地址
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