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发明名称
Electromagnetic wave amplifier
摘要
申请公布号
US2509374(A)
申请公布日期
1950.05.30
申请号
US19460674970
申请日期
1946.06.07
申请人
PHILCO CORPORATION
发明人
SUNSTEIN DAVID E.
分类号
H01J25/16
主分类号
H01J25/16
代理机构
代理人
主权项
地址
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