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发明名称
Electron optical system
摘要
申请公布号
US3223871(A)
申请公布日期
1965.12.14
申请号
US19610133221
申请日期
1961.08.22
申请人
GENERAL ELECTRIC COMPANY
发明人
SCHLESINGER KURT
分类号
H01J29/58
主分类号
H01J29/58
代理机构
代理人
主权项
地址
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