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发明名称
ELECTRON GUN
摘要
申请公布号
GB8423237(D0)
申请公布日期
1984.10.17
申请号
GB19840023237
申请日期
1984.09.14
申请人
LEYBOLD-HERAEUS GMBH
发明人
分类号
H01J37/065;H01J37/248
主分类号
H01J37/065
代理机构
代理人
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