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经营范围
发明名称
Microwave amplifier device
摘要
申请公布号
US2823332(A)
申请公布日期
1958.02.11
申请号
US19510230569
申请日期
1951.06.08
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
FLETCHER ROBERT C.
分类号
H01J23/28
主分类号
H01J23/28
代理机构
代理人
主权项
地址
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