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发明名称
Improvements in or relating to magnetic electron lenses and pole pieces for use therein
摘要
申请公布号
GB744647(A)
申请公布日期
1956.02.08
申请号
GB19530024508
申请日期
1953.09.04
申请人
PHILLIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H01J37/14
主分类号
H01J37/14
代理机构
代理人
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