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发明名称
Kathode fuer elektrische Entladungsgefaesse
摘要
申请公布号
DE692109(C)
申请公布日期
1940.06.12
申请号
DE193700A2949D
申请日期
1937.05.15
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
ZIEGENBEIN DR.-ING. WILHELM
分类号
H01J1/14
主分类号
H01J1/14
代理机构
代理人
主权项
地址
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