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经营范围
发明名称
Improvements in or relating to holders for thermionic valves
摘要
申请公布号
GB327511(A)
申请公布日期
1930.04.10
申请号
GB19290005054
申请日期
1929.02.14
申请人
HUMPHREY THOMAS LOGAN
发明人
分类号
H01R33/76
主分类号
H01R33/76
代理机构
代理人
主权项
地址
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