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发明名称
Improvements in or relating to clocks combined with advertising devices
摘要
申请公布号
GB403515(A)
申请公布日期
1933.12.28
申请号
GB19320031794
申请日期
1932.11.10
申请人
ERNEST ABEL ROGERS
发明人
分类号
G09F23/16
主分类号
G09F23/16
代理机构
代理人
主权项
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