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发明名称
Improvements in or relating to thermionic valves
摘要
申请公布号
GB932999(A)
申请公布日期
1963.07.31
申请号
GB19610004879
申请日期
1961.02.09
申请人
THE MI¬O VALVE COMPANY LIMITED;HORACE LAURENCE GIBSON
发明人
分类号
H01J19/74
主分类号
H01J19/74
代理机构
代理人
主权项
地址
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