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发明名称
Электронная лампа
摘要
申请公布号
SU20217(A1)
申请公布日期
1931.04.30
申请号
SU19300064315
申请日期
1930.02.13
申请人
GOSUDARSTVENNOE VSESOYUZNOE ELEKTROTEKHNICHESKOE OBEDINENIE "VEO"
发明人
ZUSMANOVSKIJ S.A.
分类号
H01J21/10
主分类号
H01J21/10
代理机构
代理人
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