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发明名称
ELECTRON BEAM DEVICES
摘要
申请公布号
GB9316353(D0)
申请公布日期
1993.09.29
申请号
GB19930016353
申请日期
1993.08.06
申请人
GEC-MARCONI LIMITED
发明人
分类号
H01J25/00;H01J25/78;H01J37/073
主分类号
H01J25/00
代理机构
代理人
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地址
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