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发明名称
Amplificateur à électrons secondaires
摘要
申请公布号
FR817566(A)
申请公布日期
1937.09.06
申请号
FRD817566
申请日期
1937.02.10
申请人
FERNSEH A. G.
发明人
分类号
H01J43/00;H01J43/04;H01J43/20
主分类号
H01J43/00
代理机构
代理人
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