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经营范围
发明名称
Nonthermionic hollow cathode electron beam apparatus
摘要
申请公布号
US3320475(A)
申请公布日期
1967.05.16
申请号
US19630289357
申请日期
1963.06.20
申请人
GENERAL ELECTRIC COMPANY
发明人
BORING KENNETH L.
分类号
B23K15/10;H01J37/077;H01J37/21;H01J37/24;H01J37/304
主分类号
B23K15/10
代理机构
代理人
主权项
地址
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