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经营范围
发明名称
Electron beam apparatus
摘要
申请公布号
GB1171608(A)
申请公布日期
1969.11.26
申请号
GB19660049211
申请日期
1966.11.02
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
分类号
H01J29/46
主分类号
H01J29/46
代理机构
代理人
主权项
地址
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