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经营范围
发明名称
Improvements in electron beam system
摘要
申请公布号
GB942306(A)
申请公布日期
1963.11.20
申请号
GB19590043477
申请日期
1959.12.22
申请人
GENERAL ELECTRIC COMPANY
发明人
分类号
H04N5/74;H04N5/82
主分类号
H04N5/74
代理机构
代理人
主权项
地址
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