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经营范围
发明名称
Indirekt geheizte Gluehkathode
摘要
申请公布号
DE612693(C)
申请公布日期
1935.05.02
申请号
DENDATR072199D
申请日期
申请人
RADIO-ROEHREN-LABORATORIUM DR. NICKEL G.M.B.H.;RADIO-ROEHREN-LABORATORIUM DR. NICKEL G.M.B.H.
发明人
分类号
H01J1/26
主分类号
H01J1/26
代理机构
代理人
主权项
地址
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