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经营范围
发明名称
ELECTRON-BEAM DEVICE
摘要
In order to improve the performance of an electron-beam device, the ends of the cathode housing is provided with dome-shaped structures.
申请公布号
US2014117838(A1)
申请公布日期
2014.05.01
申请号
US201214126004
申请日期
2012.06.27
申请人
REUSSER HANS;WABER TONI;TETRA LAVAL HOLDINGS & FINANCE S.A.
发明人
REUSSER HANS;WABER TONI
分类号
H01J37/30
主分类号
H01J37/30
代理机构
代理人
主权项
地址
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