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发明名称
An improved atterrissage provision for a flapping-wing aerial machine
摘要
申请公布号
GB339160(A)
申请公布日期
1930.12.04
申请号
GB19300001069
申请日期
1930.01.11
申请人
JOHN DICKSON BATTEN
发明人
分类号
B64C33/00
主分类号
B64C33/00
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