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发明名称
Elektrode fuer elektrische Entladungsgefaesse, insbesondere unmittelbar geheizte Kathode
摘要
申请公布号
DE665704(C)
申请公布日期
1938.10.01
申请号
DENDATA077868D
申请日期
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
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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