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经营范围
发明名称
Superheterodyne receiver
摘要
申请公布号
US2483315(A)
申请公布日期
1949.09.27
申请号
US19460661523
申请日期
1946.04.12
申请人
HARTFORD NATIONAL BANK AND TRUST COMPANY
发明人
GROOT FOLKERT ALBERT DE
分类号
H03J7/00;H03J7/14;H04B1/30
主分类号
H03J7/00
代理机构
代理人
主权项
地址
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