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发明名称
Electrical amplifier circuit
摘要
申请公布号
US1764552(A)
申请公布日期
1930.06.17
申请号
US19280275178
申请日期
1928.05.04
申请人
RADIO FREQUENCY LABORATORIES, INCORPORATED
发明人
DRAKE FREDERICK H.
分类号
H03F1/16
主分类号
H03F1/16
代理机构
代理人
主权项
地址
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