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发明名称
Improvements in or relating to electron mirrors
摘要
申请公布号
GB489428(A)
申请公布日期
1938.07.25
申请号
GB19360035357
申请日期
1936.12.24
申请人
FREDERICK HERMES NICOLL
发明人
分类号
H01J29/60
主分类号
H01J29/60
代理机构
代理人
主权项
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