发明名称 PORTABLE WRITING BOARD SYSTEM
摘要 A portable writing system comprising an assembly of panels, at least one of which has a writing surface thereon, connected by joints which may be repeatedly rearranged from an open or use configuration to a closed or transport configuration, providing exceptional convenience and portability.
申请公布号 WO2010120517(A3) 申请公布日期 2011.01.13
申请号 WO2010US29392 申请日期 2010.03.31
申请人 3M INNOVATIVE PROPERTIES COMPANY 发明人 SUGAI, NAOHITO
分类号 A47B97/04;B43L1/10;B43L3/00 主分类号 A47B97/04
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