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发明名称
Improvements in or relating to grid electrodes for electron discharge devices
摘要
申请公布号
GB731220(A)
申请公布日期
1955.06.01
申请号
GB19530016814
申请日期
1953.06.18
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE, M.B.H.
发明人
分类号
H01J19/38
主分类号
H01J19/38
代理机构
代理人
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地址
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