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发明名称
Safety device for airplanes
摘要
申请公布号
US2161520(A)
申请公布日期
1939.06.06
申请号
US19360114159
申请日期
1936.12.04
申请人
JAMES MARTIN
发明人
MARTIN JAMES
分类号
B64C25/00
主分类号
B64C25/00
代理机构
代理人
主权项
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