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发明名称
Rotary wing aircraft
摘要
申请公布号
US2579055(A)
申请公布日期
1951.12.18
申请号
US19460697743
申请日期
1946.09.18
申请人
THOMPSON ARTHUR M
发明人
THOMPSON ARTHUR M.
分类号
B64C27/04
主分类号
B64C27/04
代理机构
代理人
主权项
地址
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