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发明名称
Direct-current amplifier
摘要
申请公布号
US2431335(A)
申请公布日期
1947.11.25
申请号
US19430494808
申请日期
1943.07.15
申请人
CONSOLIDATED ENGINEERING CORPORATION
发明人
LANGMUIR ROBERT V.
分类号
H03F3/36
主分类号
H03F3/36
代理机构
代理人
主权项
地址
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