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发明名称
Neutralizing device for vacuum tubes
摘要
申请公布号
US1820832(A)
申请公布日期
1931.08.25
申请号
US19290368704
申请日期
1929.06.05
申请人
GENERAL ELECTRIC COMPANY
发明人
RING ANDREW D.
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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