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发明名称
Dispositif servant à amplifier des images électroniques au moyen d'électrons secondaires
摘要
申请公布号
FR818346(A)
申请公布日期
1937.09.23
申请号
FRD818346
申请日期
1937.02.24
申请人
FERNSEH A.-G.
发明人
分类号
H01J31/50
主分类号
H01J31/50
代理机构
代理人
主权项
地址
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