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发明名称
Indirekt geheizte Kathode
摘要
申请公布号
DE902051(C)
申请公布日期
1954.01.18
申请号
DE1944S011428D
申请日期
1944.07.01
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
KIRSCHSTEIN DR. BERNHARD
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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