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发明名称
Perfectionnements apportés aux tubes électroniques
摘要
申请公布号
FR1270171(A)
申请公布日期
1961.08.25
申请号
FR19600840675
申请日期
1960.10.08
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H01J1/20
主分类号
H01J1/20
代理机构
代理人
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地址
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