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发明名称
Electron-emitting electrode for electric discharge tubes
摘要
申请公布号
US2488731(A)
申请公布日期
1949.11.22
申请号
US19460665636
申请日期
1946.04.27
申请人
GENERAL ELECTRIC COMPANY
发明人
LAMBERT GREGORIUS JOHAN;PADMOS ADRIAAN A.
分类号
H01J1/14;H01J61/067
主分类号
H01J1/14
代理机构
代理人
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