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经营范围
发明名称
Tuned receiver tube
摘要
申请公布号
US1875059(A)
申请公布日期
1932.08.30
申请号
US19260143889
申请日期
1926.10.25
申请人
RADIO CORPORATION
发明人
LOEWE SIEGMUND
分类号
H01J19/02
主分类号
H01J19/02
代理机构
代理人
主权项
地址
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