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经营范围
发明名称
Airway traffic control system
摘要
申请公布号
US2588931(A)
申请公布日期
1952.03.11
申请号
US19490090742
申请日期
1949.04.30
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
KENDALL HUGH C.;ORPIN LIONEL H.
分类号
G01S13/78
主分类号
G01S13/78
代理机构
代理人
主权项
地址
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