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发明名称
Improvements in electron discharge apparatus
摘要
申请公布号
GB593674(A)
申请公布日期
1947.10.22
申请号
GB19450015973
申请日期
1945.06.22
申请人
WESTERN ELECTRIC COMPANY INCORPORATED
发明人
分类号
H01J31/06
主分类号
H01J31/06
代理机构
代理人
主权项
地址
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