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发明名称
Verfahren zur Herstellung einer hochemittierenden Kathode fuer gasgefuellte Gleichrichter
摘要
申请公布号
DE601646(C)
申请公布日期
1934.08.21
申请号
DE1927S080159D
申请日期
1927.06.11
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
GEHRTS DR. AUGUST
分类号
H01J9/04
主分类号
H01J9/04
代理机构
代理人
主权项
地址
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