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发明名称
Improvements in or relating to electric discharge tubes for the photo-electric transformation of light
摘要
申请公布号
GB525608(A)
申请公布日期
1940.08.30
申请号
GB19390027622
申请日期
1939.10.10
申请人
THE MULLARD RADIO VALVE COMPANY LIMITED
发明人
分类号
H01J31/50
主分类号
H01J31/50
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代理人
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