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发明名称
Sign system
摘要
申请公布号
GB2240868(A)
申请公布日期
1991.08.14
申请号
GB19900003056
申请日期
1990.02.10
申请人
* VENTURE PROJECTS
发明人
KENNETH * JOHNSON
分类号
G09F7/00;G09F15/00
主分类号
G09F7/00
代理机构
代理人
主权项
地址
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