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经营范围
发明名称
Improvements in or relating to electrical illuminated message display signs
摘要
申请公布号
GB1104266(A)
申请公布日期
1968.02.21
申请号
GB19660016857
申请日期
1966.04.18
申请人
GENERAL ELECTRIC COMPANY
发明人
分类号
G09F13/28;G09G3/00;G09G3/24;H04J14/08;H04L25/45;H04N5/70
主分类号
G09F13/28
代理机构
代理人
主权项
地址
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