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发明名称
Improvements relating to electron discharge devices
摘要
申请公布号
GB664814(A)
申请公布日期
1952.01.16
申请号
GB19470024378
申请日期
1947.09.04
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
CHOLOT EDWARD;WHITAKER CHARLES RICHARD
分类号
H01J19/02
主分类号
H01J19/02
代理机构
代理人
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