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发明名称
Directional wireless system employing pulses
摘要
申请公布号
US2225524(A)
申请公布日期
1940.12.17
申请号
US19380240602
申请日期
1938.11.16
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
PERCIVAL WILLIAM SPENCER
分类号
G01S1/02
主分类号
G01S1/02
代理机构
代理人
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地址
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