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发明名称
Direkt oder indirekt geheizte Kathode
摘要
申请公布号
DE624971(C)
申请公布日期
1936.02.07
申请号
DE1932T041213D
申请日期
1932.08.16
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.;TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
MICHELSSEN DR. FRITZ;MICHELSSEN DR. FRITZ
分类号
H01J1/14;H01J9/04
主分类号
H01J1/14
代理机构
代理人
主权项
地址
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