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经营范围
发明名称
Variable selectivity radio receiver
摘要
申请公布号
US2167400(A)
申请公布日期
1939.07.25
申请号
US19370121416
申请日期
1937.01.21
申请人
HAZELTINE CORPORATION
发明人
FARRINGTON JOHN F.
分类号
H03G5/26
主分类号
H03G5/26
代理机构
代理人
主权项
地址
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