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发明名称
Kathode fuer elektrische Entladungsgefaesse
摘要
申请公布号
DE895478(C)
申请公布日期
1953.11.02
申请号
DE1951S025953
申请日期
1951.11.20
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
KATZ HELMUT DR. PHIL. NAT.
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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