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发明名称
Improvements in thermionic amplifiers
摘要
申请公布号
GB333390(A)
申请公布日期
1930.08.14
申请号
GB19290023895
申请日期
1929.08.03
申请人
H. CLARKE AND COMPANY (MANCHESTER) LIMITED;HAROLD INGHAM
发明人
分类号
H03F3/28;H03F3/32
主分类号
H03F3/28
代理机构
代理人
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地址
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