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发明名称
Mittelbar geheizte Kathode.
摘要
申请公布号
CH190259(A)
申请公布日期
1937.04.15
申请号
CHD190259
申请日期
1935.12.24
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
ELEKTRICITAETS-GESELLSCHAFT ALLGEMEINE
分类号
H01J1/22
主分类号
H01J1/22
代理机构
代理人
主权项
地址
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