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发明名称
ELECTRON BEAM DEVICE WITH VARIABLE BEAM ENERGY
摘要
申请公布号
GB1581309(A)
申请公布日期
1980.12.10
申请号
GB19780010967
申请日期
1978.03.20
申请人
RYBALKO SA
发明人
分类号
H01J29/58;(IPC1-7):H01J29/58
主分类号
H01J29/58
代理机构
代理人
主权项
地址
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