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经营范围
发明名称
Improvements in or relating to variable gain circuit arrangements
摘要
申请公布号
GB915404(A)
申请公布日期
1963.01.09
申请号
GB19610001520
申请日期
1961.01.13
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
PAY DONALD ALEXANDER
分类号
H03G1/02;H04N5/265
主分类号
H03G1/02
代理机构
代理人
主权项
地址
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