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发明名称
Improvements relating to thermionic valves
摘要
申请公布号
GB859450(A)
申请公布日期
1961.01.25
申请号
GB19580011427
申请日期
1958.04.10
申请人
ASSOCIATED ELECTRIC INDUSTRIES LIMITED
发明人
BAWDEKAR VAMAN SHANTARAM
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
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