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经营范围
发明名称
Improvements in or relating to thermionic valve circuits
摘要
申请公布号
GB592328(A)
申请公布日期
1947.09.15
申请号
GB19450012503
申请日期
1945.05.17
申请人
TERENCE JOHN MCDERMOTT
发明人
分类号
H03K11/00
主分类号
H03K11/00
代理机构
代理人
主权项
地址
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