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发明名称
Thermionic valve amplifier
摘要
申请公布号
US2269001(A)
申请公布日期
1942.01.06
申请号
US19400351593
申请日期
1940.08.06
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
BLUMLEIN ALAN DOWER
分类号
H03F1/36;H04N5/202
主分类号
H03F1/36
代理机构
代理人
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