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发明名称
Roller-blind display apparatus
摘要
申请公布号
GB9725325(D0)
申请公布日期
1998.01.28
申请号
GB19970025325
申请日期
1997.11.28
申请人
POWERGRAPHIC DISPLAYS LIMITED
发明人
分类号
主分类号
代理机构
代理人
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