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发明名称
Mechanism for projecting and retracting aircraft lift rotors
摘要
申请公布号
US2481502(A)
申请公布日期
1949.09.13
申请号
US19430496283
申请日期
1943.07.27
申请人
DOWNING GEORGE G
发明人
DOWNING GEORGE G.
分类号
B64C29/00
主分类号
B64C29/00
代理机构
代理人
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地址
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