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发明名称
Improvements in or relating to the illumination of advertising or like composite signs
摘要
申请公布号
GB307073(A)
申请公布日期
1930.01.16
申请号
GB19290006716
申请日期
1929.03.01
申请人
CARL HENTSCHEL
发明人
分类号
G09F19/00
主分类号
G09F19/00
代理机构
代理人
主权项
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