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发明名称
Perfectionnements aux dispositifs à décharge électronique
摘要
申请公布号
FR968767(A)
申请公布日期
1950.12.05
申请号
FRD968767
申请日期
1948.07.06
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
FOULKES CHRISTOPHER HENRY
分类号
H01J19/42
主分类号
H01J19/42
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代理人
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