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发明名称
Focusing apparatus for beams of charged particles
摘要
申请公布号
GB959674(A)
申请公布日期
1964.06.03
申请号
GB19600027878
申请日期
1960.08.11
申请人
VARIAN ASSOCIATES
发明人
分类号
H01J3/02;H01J23/087;H01J29/58
主分类号
H01J3/02
代理机构
代理人
主权项
地址
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