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经营范围
发明名称
Improvements in or relating to ultra high radio frequency thermionic oscillators
摘要
申请公布号
GB568564(A)
申请公布日期
1945.04.11
申请号
GB19400007967
申请日期
1940.05.03
申请人
FERRANTI LIMITED;RONALD GEORGE BUTLER GWYDER;JAMES GERALD HEAPS
发明人
分类号
H03F1/08
主分类号
H03F1/08
代理机构
代理人
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地址
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