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经营范围
发明名称
Electron beam apparatus
摘要
申请公布号
US2924738(A)
申请公布日期
1960.02.09
申请号
US19540404040
申请日期
1954.01.14
申请人
VARIAN ASSOCIATES
发明人
CHODOROW MARVIN
分类号
H01J23/083
主分类号
H01J23/083
代理机构
代理人
主权项
地址
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