发明名称 ADJUSTABLE LEGS FOR DESK AND THE LIKE
摘要 A school desk has legs adapted to be lengthened for raising the desk. The legs are provided with a sleeve adapted to fittingly slide on the legs. The legs have a transversal perforation, and the sleeves have a set of vertically disposed holes. A screw and nut combination is used to lock the sleeves on the legs at selected vertical positions. The sleeves are vertically grooved to facilitate their sliding action and to allow the screw and nut combination to positively lock the sleeves on the legs.
申请公布号 CA2041990(C) 申请公布日期 1994.10.25
申请号 CA19912041990 申请日期 1991.05.07
申请人 LANGLAIS, SYLVAIN;CUSSON, ROBERT 发明人 LANGLAIS, SYLVAIN;CUSSON, ROBERT
分类号 A47B9/00;(IPC1-7):A47B9/00 主分类号 A47B9/00
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