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经营范围
发明名称
Improvements in or relating to radio tracking systems
摘要
申请公布号
GB669258(A)
申请公布日期
1952.04.02
申请号
GB19500020525
申请日期
1950.08.18
申请人
THE SPERRY CORPORATION
发明人
分类号
G01S13/68
主分类号
G01S13/68
代理机构
代理人
主权项
地址
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