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发明名称
Improvements in getter devices for vacuum tubes
摘要
申请公布号
GB830642(A)
申请公布日期
1960.03.16
申请号
GB19580022976
申请日期
1958.07.17
申请人
MACHLETT LABORATORIES, INCORPORATED
发明人
分类号
H01J7/18
主分类号
H01J7/18
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代理人
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