发明名称 Clipboard structure
摘要 A clipboard structure includes a board having a seat formed on one end of an upper surface. A recess is formed in an outer end of the seat. A clamping element has two legs disposed in the recess. A spring element has two free ends fixed to the legs of the clamping element. The spring element can be easily assembled in the recess of the seat. The spring element biases the legs of the clamping element so that a front end of the clamping element is forced to abut against the board.
申请公布号 US4961249(A) 申请公布日期 1990.10.09
申请号 US19900466932 申请日期 1990.01.18
申请人 LIU, DAVID;KEO, JANE 发明人 LIU, DAVID;KEO, JANE
分类号 B42F9/00 主分类号 B42F9/00
代理机构 代理人
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