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发明名称
Improved day and night box sign for advertising or other uses
摘要
申请公布号
GB511429(A)
申请公布日期
1939.08.18
申请号
GB19380004503
申请日期
1939.03.13
申请人
STANLEY OSBORNE
发明人
分类号
G09F13/08
主分类号
G09F13/08
代理机构
代理人
主权项
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