Improvements in and relating to electrical circuit arrangements using a gas discharge device, applicable to direct current amplifiers, and other electrical control amplifying and relaying apparatus
摘要
申请公布号
GB369578(A)
申请公布日期
1932.03.21
申请号
GB19300038476
申请日期
1930.12.20
申请人
WILLIAM BEVERIDGE MACKENZIE;HAROLD SMITH;ERNEST GEORGE HILL
