发明名称 Ribbed mat for placement on bottom of file cabinet drawer to prevent document slippage
摘要 A soft mat for placement on the bottom of a file cabinet drawer to maintain the stored files in an orderly upright position. The upper surface of the mat is provided with a series of spaced, parallel ridges defining grooves which receive edge portions of the files.
申请公布号 US5211458(A) 申请公布日期 1993.05.18
申请号 US19920922503 申请日期 1992.07.31
申请人 YALE, WILLIAM S. 发明人 YALE, WILLIAM S.
分类号 A47B88/20 主分类号 A47B88/20
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