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发明名称
METHOD OF USING AN OPEN BOOK SECURING DEVICE FOR HANDS-FREE READING OF AN OPEN BOOK
摘要
申请公布号
EP1115308(A1)
申请公布日期
2001.07.18
申请号
EP19990930635
申请日期
1999.06.25
申请人
AINSWORTH, DAVID VINCENT
发明人
AINSWORTH, DAVID VINCENT
分类号
A47B23/00;(IPC1-7):A47B23/00
主分类号
A47B23/00
代理机构
代理人
主权项
地址
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