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发明名称
Improvements in or relating to high frequency electron discharge tube structures
摘要
申请公布号
GB640981(A)
申请公布日期
1950.08.02
申请号
GB19480031097
申请日期
1942.10.09
申请人
THE SPERRY CORPORATION
发明人
分类号
H01J25/12;H03B19/10
主分类号
H01J25/12
代理机构
代理人
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