Height-adjustable Desk

FIG. 1 is a front view of a height-adjustable desk showing my new design; FIG. 2 is a back view of the height-adjustable desk shown in FIG. 1 ; FIG. 3 is a left side view of the height-adjustable desk shown in FIG. 1 ; FIG. 4 is a right side view of the height-adjustable desk shown in FIG. 1 ; FIG. 5 is a top view of the height-adjustable desk shown in FIG. 1 ; FIG. 6 is a bottom view of the height-adjustable desk shown in FIG. 1 ; FIG. 7 is a front top perspective view of the height-adjustable desk shown in FIG. 1 ; FIG. 8 is a back top perspective view of the height-adjustable desk shown in FIG. 1 ; FIG. 9 is a front bottom perspective view of the height-adjustable desk shown in FIG. 1 ; and, FIG. 10 is an enlarged partial view of the area within the phantom line 10 in FIG. 9 . The dot-dot-dash broken lines in FIGS. 9 - 10 illustrate the border of enlarged detailed views and form no part of the claimed design.