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发明名称
Self-luminous day and night signs
摘要
申请公布号
GB395388(A)
申请公布日期
1933.07.03
申请号
GB19320000086
申请日期
1932.01.01
申请人
CYRIL LESLIE BENNETT
发明人
分类号
G09F7/14
主分类号
G09F7/14
代理机构
代理人
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