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发明名称
PORTABLE RETRACTABLE ERASABLE WRITING SURFACE
摘要
申请公布号
EP2254758(A1)
申请公布日期
2010.12.01
申请号
EP20090720478
申请日期
2009.03.11
申请人
ZIPBOARD, INC.
发明人
BUDRYK, ROBERT;FISHER, TOBIN, J.
分类号
B43L1/00;B43L1/08
主分类号
B43L1/00
代理机构
代理人
主权项
地址
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