| 摘要 |
<p>An adjustable foot stool is disclosed which embodies a pair of legs that are pivoted to each other, and which carry at their upper ends a flexible member that is fixedly attached to one pair of legs, the other pair of legs carrying a revolvable roller to which the flexible member is attached, the revolvable roller being provided with means to control its position and in turn the position of the legs relative to each other so that the height of the foot stool may be readily adjusted.</p> |
