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经营范围
发明名称
Microwave amplifier
摘要
申请公布号
US2652513(A)
申请公布日期
1953.09.15
申请号
US19480064889
申请日期
1948.12.11
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HOLLENBERG ARTHUR V.
分类号
H01J25/48
主分类号
H01J25/48
代理机构
代理人
主权项
地址
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