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发明名称
Indirekt geheizte Kathode fuer elektrische Entladungsgefaesse
摘要
申请公布号
DE891428(C)
申请公布日期
1953.09.28
申请号
DE1951S023939
申请日期
1951.07.14
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
COSTA SIEGFRIED
分类号
H01J1/28
主分类号
H01J1/28
代理机构
代理人
主权项
地址
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