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发明名称
Radio tuning indication
摘要
申请公布号
US2136665(A)
申请公布日期
1938.11.15
申请号
US19360064517
申请日期
1936.02.18
申请人
BARBER ALFRED W
发明人
BARBER ALFRED W.
分类号
H03J3/14
主分类号
H03J3/14
代理机构
代理人
主权项
地址
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