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经营范围
发明名称
Radio position determining system
摘要
申请公布号
GB663775(A)
申请公布日期
1951.12.27
申请号
GB19480025697
申请日期
1948.10.01
申请人
SEISMOGRAPH SERVICE CORPORATION
发明人
分类号
G01S1/30
主分类号
G01S1/30
代理机构
代理人
主权项
地址
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