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发明名称
LENS APERTURE STRUCTURE FOR DIMINISHING FOCAL ABERRATIONS IN AN ELECTRON GUN
摘要
申请公布号
EP1208579(A1)
申请公布日期
2002.05.29
申请号
EP20000965610
申请日期
2000.08.10
申请人
ORION ELECTRIC CO., LTD.
发明人
NEW, DAVID, ARTHUR
分类号
H01J29/48;H01J29/50;H01J29/56;H01J29/62;(IPC1-7):H01J29/56
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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