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发明名称
Roehre mit Gluehkathode
摘要
申请公布号
DE735708(C)
申请公布日期
1943.05.24
申请号
DE1938K152089D
申请日期
1938.10.13
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
KREBS FRITZ
分类号
H01J5/50;H01J19/28;H01J19/42;H03F1/54
主分类号
H01J5/50
代理机构
代理人
主权项
地址
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