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发明名称
Improvements in optical devices for the control of flight
摘要
申请公布号
GB429319(A)
申请公布日期
1935.05.28
申请号
GB19340021143
申请日期
1934.07.19
申请人
UMBERTO NISTRI
发明人
分类号
B64D45/00
主分类号
B64D45/00
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