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发明名称
Improvements in or relating to electron beam centering means
摘要
申请公布号
GB1049838(A)
申请公布日期
1966.11.30
申请号
GB19640010431
申请日期
1964.03.12
申请人
E. K. COLE LIMITED
发明人
KING ARTHUR EDWARD
分类号
H01J29/54;H01J29/82
主分类号
H01J29/54
代理机构
代理人
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地址
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