The ornamental design for a storagecabinet, as shown and described.
FIG. 1 is a left side elevational view of a storage cabinet showing my new
design; the undisclosed right side elevational view thereof being a mirror
image of the disclosed left side;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom view thereof; and
FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 2.