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发明名称
Improvements in or relating to electron discharge apparatus
摘要
申请公布号
GB586150(A)
申请公布日期
1947.03.10
申请号
GB19420010007
申请日期
1942.07.17
申请人
STANDARD TELEPHONES AND CABLES LIMITED;CHRISTOPHER HENRY FOULKES
发明人
分类号
H01J25/08
主分类号
H01J25/08
代理机构
代理人
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