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发明名称
Improvements in or relating to thermionic amplifiers
摘要
申请公布号
GB402964(A)
申请公布日期
1933.12.14
申请号
GB19330005956D
申请日期
1933.02.27
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H03F3/28;H03F3/32
主分类号
H03F3/28
代理机构
代理人
主权项
地址
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