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发明名称
Improvements relating to electron optical lens systems
摘要
申请公布号
GB794014(A)
申请公布日期
1958.04.30
申请号
GB19540028370
申请日期
1954.10.01
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
ARCHARD GEOFFREY DENNIS
分类号
H01J37/153
主分类号
H01J37/153
代理机构
代理人
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