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发明名称
Improvements in or relating to electrode arrangements for cathode ray tubes
摘要
申请公布号
GB522952(A)
申请公布日期
1940.07.02
申请号
GB19380037031
申请日期
1938.12.20
申请人
FREDERICK HERMES NICOLL
发明人
分类号
H01J29/48
主分类号
H01J29/48
代理机构
代理人
主权项
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