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发明名称
Procédé de fabrication de tubes à décharge électrique à cathode à oxyde
摘要
申请公布号
FR1187533(A)
申请公布日期
1959.09.11
申请号
FRD1187533
申请日期
1957.12.06
申请人
TELEFUNKEN G. M. B. H.
发明人
KALLWEIT HERBERT;VEITH KARL
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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