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发明名称
Einrichtung zur Steuerung des Heizstromes von Entladungsroehren mit Gluehkathode
摘要
申请公布号
DE668887(C)
申请公布日期
1938.12.12
申请号
DE1935T046048D
申请日期
1935.11.23
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H01J1/13
主分类号
H01J1/13
代理机构
代理人
主权项
地址
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