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发明名称
Radio compass system
摘要
申请公布号
US1767141(A)
申请公布日期
1930.06.24
申请号
US19270190634
申请日期
1927.05.11
申请人
FEDERAL TELEGRAPH COMPANY
发明人
KOLSTER FREDERICK A.
分类号
G01S3/06
主分类号
G01S3/06
代理机构
代理人
主权项
地址
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