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发明名称
Improvements relating to cathodes for electron emissive devices
摘要
申请公布号
GB733191(A)
申请公布日期
1955.07.06
申请号
GB19520027080
申请日期
1952.10.28
申请人
METROPOLITAN-VICKERS ELECTRICAL COMPANY LIMITED
发明人
LUDLOW JOHN HEYWOOD;BENNETTS HUMPHREY GRAHAME
分类号
H01J1/28
主分类号
H01J1/28
代理机构
代理人
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地址
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