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经营范围
发明名称
Improvements in luminous electric discharge tubes
摘要
申请公布号
GB405514(A)
申请公布日期
1934.02.08
申请号
GB19330015724
申请日期
1933.05.31
申请人
THE GENERAL ELECTRIC COMPANY LIMITED
发明人
分类号
B41F1/28;H01J61/52;H01J61/54
主分类号
B41F1/28
代理机构
代理人
主权项
地址
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