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发明名称
Ventilation system
摘要
申请公布号
US2496862(A)
申请公布日期
1950.02.07
申请号
US19460683805
申请日期
1946.07.15
申请人
DOUGLAS AIRCRAFT COMPANY, INC.
发明人
MAR BRUCE E. DEL
分类号
B64D13/04
主分类号
B64D13/04
代理机构
代理人
主权项
地址
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