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经营范围
发明名称
ELECTRON BEAM GENERATOR
摘要
申请公布号
JPS6269452(A)
申请公布日期
1987.03.30
申请号
JP19850208415
申请日期
1985.09.19
申请人
NEC CORP
发明人
SAITO SHUICHI
分类号
H01J37/04;H01J37/06
主分类号
H01J37/04
代理机构
代理人
主权项
地址
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