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发明名称
Radio pulse echo device with alarm actuated by selected echoes
摘要
申请公布号
US2878465(A)
申请公布日期
1959.03.17
申请号
US19530355498
申请日期
1953.05.18
申请人
MILLER RICHARD R
发明人
MILLER RICHARD R.
分类号
G01S13/18
主分类号
G01S13/18
代理机构
代理人
主权项
地址
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