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发明名称
Radio distance or location finder
摘要
申请公布号
US1890786(A)
申请公布日期
1932.12.13
申请号
US19300432782
申请日期
1930.03.03
申请人
JOHNSTON WILLIAM S
发明人
JOHNSTON WILLIAM S.
分类号
G01S11/02;G01S19/15;G01S19/18;G01S19/48;G01S19/49;G01S19/54
主分类号
G01S11/02
代理机构
代理人
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地址
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