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发明名称
Improvements in cooling devices for electron discharge devices
摘要
申请公布号
GB558975(A)
申请公布日期
1944.01.28
申请号
GB19420011932
申请日期
1942.08.25
申请人
STANDARD TELEPHONES AND CABLES, LIMITED
发明人
分类号
H01J19/36
主分类号
H01J19/36
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代理人
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