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发明名称
Beam-type tube
摘要
申请公布号
GB865431(A)
申请公布日期
1961.04.19
申请号
GB19580019922
申请日期
1958.06.20
申请人
HEWLETT-PACKARD COMPANY
发明人
分类号
H01J23/09
主分类号
H01J23/09
代理机构
代理人
主权项
地址
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