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发明名称
Improvements in or relating to display signs
摘要
申请公布号
GB328069(A)
申请公布日期
1930.04.24
申请号
GB19290005143
申请日期
1929.02.15
申请人
WILLIAM THOMAS AKERS;CHARLES HENRY NALDER LAVENDER;ALFRED JAMES MARTYN;WILLIAM WOOLLCOTT
发明人
分类号
G09F13/14
主分类号
G09F13/14
代理机构
代理人
主权项
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