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经营范围
发明名称
Improvements in or relating to indicating systems for electrical signals particularly for use with radio beacons
摘要
申请公布号
GB616295(A)
申请公布日期
1949.01.19
申请号
GB19460011557
申请日期
1946.04.15
申请人
THE DECCA RECORD COMPANY LIMITED;WILLIAM JOSEPH O'BRIEN
发明人
分类号
G01S1/02
主分类号
G01S1/02
代理机构
代理人
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