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经营范围
发明名称
Improvements in or relating to clocks combined with advertising apparatus
摘要
申请公布号
GB409717(A)
申请公布日期
1934.04.30
申请号
GB19320030451
申请日期
1932.10.31
申请人
FRANK DAVENALL NORTON;JOHN FREDERICK WILLIAM STUART
发明人
分类号
G09F23/16
主分类号
G09F23/16
代理机构
代理人
主权项
地址
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