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发明名称
Improvements in or relating to velocity modulated electron tubes
摘要
申请公布号
GB909558(A)
申请公布日期
1962.10.31
申请号
GB19610003219
申请日期
1961.01.27
申请人
CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J23/027
主分类号
H01J23/027
代理机构
代理人
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