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发明名称
High-frequency vacuum tube
摘要
申请公布号
US2567255(A)
申请公布日期
1951.09.11
申请号
US19460649101
申请日期
1946.02.20
申请人
EMERICK TOTH
发明人
TOTH EMERICK
分类号
H01J21/36
主分类号
H01J21/36
代理机构
代理人
主权项
地址
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