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发明名称
Perfectionnements aux tubes à faisceau électronique
摘要
申请公布号
FR61828(E)
申请公布日期
1955.05.18
申请号
FRD61828
申请日期
1951.07.05
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
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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