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经营范围
发明名称
Directional radio receiver
摘要
申请公布号
US2197734(A)
申请公布日期
1940.04.16
申请号
US19380196947
申请日期
1938.03.19
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
STEINHOFF JOHN R.
分类号
G01S1/02;G01S19/36
主分类号
G01S1/02
代理机构
代理人
主权项
地址
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