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发明名称
Electron discharge tube
摘要
申请公布号
US2572644(A)
申请公布日期
1951.10.23
申请号
US19480045139
申请日期
1948.08.19
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
MCGEE JAMES DWYER
分类号
H01J31/34
主分类号
H01J31/34
代理机构
代理人
主权项
地址
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