发明名称 COLLAPSIBLE CLIPBOARD
摘要 A collapsible clipboard includes a bottom case, a cap board and an upper board formed respectively integral of plastic, and all of them are pivotally connected with each other, enabling the upper board and the cap board respectively liftable from the bottom case easily and quickly.
申请公布号 CA2315292(A1) 申请公布日期 2002.02.04
申请号 CA20002315292 申请日期 2000.08.04
申请人 TSAI, CHING TSUNG 发明人 TSAI, CHING TSUNG
分类号 B43L3/00;(IPC1-7):B42F1/00 主分类号 B43L3/00
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