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经营范围
发明名称
Thermionic valves
摘要
申请公布号
US3062980(A)
申请公布日期
1962.11.06
申请号
US19600024547
申请日期
1960.04.25
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
BAWDEKAR VAMAN SHANTARAM
分类号
H01J19/52
主分类号
H01J19/52
代理机构
代理人
主权项
地址
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