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发明名称
Improvements in or relating to cathode structures for electron discharge devices
摘要
申请公布号
GB773580(A)
申请公布日期
1957.05.01
申请号
GB19530022817
申请日期
1953.08.19
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
MURPHY ARTHUR YOAKLEY;BROOKS SIDNEY HALEY
分类号
H01J1/20;H01J29/48
主分类号
H01J1/20
代理机构
代理人
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