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发明名称
Improved means for timing the lighting of illuminated advertisements, signs and the like
摘要
申请公布号
GB375874(A)
申请公布日期
1932.07.07
申请号
GB19300038010
申请日期
1931.09.16
申请人
DAVID MARTIN
发明人
分类号
G09F23/16
主分类号
G09F23/16
代理机构
代理人
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