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经营范围
发明名称
Ultra short wave receiver
摘要
申请公布号
US2202035(A)
申请公布日期
1940.05.28
申请号
US19360080492
申请日期
1936.05.19
申请人
RADIO CORPORATION
发明人
TREVOR BERTRAM
分类号
H03D7/14;H03H2/00;H03H7/01
主分类号
H03D7/14
代理机构
代理人
主权项
地址
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