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发明名称
Thermionic valve amplifier
摘要
申请公布号
US2221122(A)
申请公布日期
1940.11.12
申请号
US19380236146
申请日期
1938.10.21
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
WHITE ERIC LAWRENCE CASLING;HARKER MAURICE GEOFFREY
分类号
H03F1/36
主分类号
H03F1/36
代理机构
代理人
主权项
地址
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