The ornamental design for an adjustable equipmentsupportstand, substantially as shown and described.
FIG. 1 is a perspective view of an adjustable equipment support stand
showing my design, the broken lines disclosed therein being for
illustrative purposes only;
FIG. 2 is a front elevational view thereof on an enlarged scale, the rear
elevational view being substantially the same;
FIG. 3 is a top plan view thereof on an enlarged scale, the bottom plan
view thereof being substantially the same; and
FIG. 4 is a left end elevational view thereof on an enlarged scale, the
right end elevational view being substantially a mirror image thereof.
FIGS. 2 and 3 have been shown broken away at the center for ease of
illustration.