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发明名称
Directional radio beam for blind landings
摘要
申请公布号
US2347180(A)
申请公布日期
1944.04.25
申请号
US19420430903
申请日期
1942.02.14
申请人
AGA-BALTIC AKTIEBOLAG
发明人
GRANQVIST CARL-ERIK
分类号
G01S1/02
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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