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经营范围
发明名称
Электронная лампа
摘要
申请公布号
SU41958(A1)
申请公布日期
1935.02.28
申请号
SU19310083384
申请日期
1931.02.13
申请人
MEZHDUNARODNAYA VSEOBSHSHAYA KOMPANIYA ELEKTRICHESTVA
发明人
M.A. ACHZON
分类号
H01J19/32
主分类号
H01J19/32
代理机构
代理人
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