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发明名称
improvements relating to electron emissive cathodes
摘要
申请公布号
GB767718(A)
申请公布日期
1957.02.06
申请号
GB19530030669
申请日期
1953.11.05
申请人
METROPOLITAN-VICKERS ELECTRICAL COMPANY LIMITED
发明人
LUDLOW JOHN HEYWOOD
分类号
H01J1/28
主分类号
H01J1/28
代理机构
代理人
主权项
地址
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