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发明名称
Unipotential-cathode vacuum tube
摘要
申请公布号
US1745369(A)
申请公布日期
1930.02.04
申请号
US19240757017
申请日期
1924.12.19
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
HOLDEN WILLIAM H. T.
分类号
H01J21/10;H03F3/02
主分类号
H01J21/10
代理机构
代理人
主权项
地址
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