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发明名称
Накаливаемый катод для разрядных трубок
摘要
申请公布号
SU27980(A1)
申请公布日期
1932.10.31
申请号
SU19310089511
申请日期
1931.06.04
申请人
SITNIKOV M.M.
发明人
SITNIKOV M.M.
分类号
H01J1/16
主分类号
H01J1/16
代理机构
代理人
主权项
地址
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