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发明名称
Improvements in or relating to cathode ray tubes having ion trapping arrangements
摘要
申请公布号
GB738270(A)
申请公布日期
1955.10.12
申请号
GB19520010637
申请日期
1952.04.28
申请人
TELEFUNKEN, G.M.B.H.
发明人
分类号
H01J29/84
主分类号
H01J29/84
代理机构
代理人
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地址
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