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发明名称
Improvements in evacuated and gas-filled devices and methods of manufacturing
摘要
申请公布号
GB828982(A)
申请公布日期
1960.02.24
申请号
GB19570039644
申请日期
1957.12.20
申请人
GENERAL ELECTRIC COMPANY
发明人
分类号
H01J7/18;H01J9/38
主分类号
H01J7/18
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代理人
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