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发明名称
Perfectionnements aux tubes électroniques munis d'un piège à ions
摘要
申请公布号
FR1121848(A)
申请公布日期
1956.08.27
申请号
FRD1121848
申请日期
1955.04.06
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
分类号
H01J29/84
主分类号
H01J29/84
代理机构
代理人
主权项
地址
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