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经营范围
发明名称
Electron beam tube
摘要
申请公布号
GB877506(A)
申请公布日期
1961.09.13
申请号
GB19580022478
申请日期
1958.07.14
申请人
EITEL-MCCULLOUGH, INC.
发明人
分类号
H01J31/04
主分类号
H01J31/04
代理机构
代理人
主权项
地址
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