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经营范围
发明名称
Secondary emission suppression in electron beam tubes
摘要
申请公布号
US2955229(A)
申请公布日期
1960.10.04
申请号
US19560622228
申请日期
1956.11.14
申请人
GENERAL ELECTRIC COMPANY
发明人
BONDLEY RALPH J.
分类号
H01J25/12
主分类号
H01J25/12
代理机构
代理人
主权项
地址
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