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发明名称
Radio compass system
摘要
申请公布号
US2220904(A)
申请公布日期
1940.11.12
申请号
US19360090996
申请日期
1936.07.16
申请人
HOOVEN FREDERICK J
发明人
HOOVEN FREDERICK J.
分类号
G01S1/02;G01S19/28;G01S19/35
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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