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发明名称
Improvements in aircraft
摘要
申请公布号
GB513156(A)
申请公布日期
1939.10.05
申请号
GB19380003871
申请日期
1938.02.28
申请人
ALBERT ERNEST DOWNING
发明人
分类号
B64C33/00
主分类号
B64C33/00
代理机构
代理人
主权项
地址
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