The design for a shelfbracket, shown and described.
FIG. 1 is a perspective view of a shelf bracket showing my new design; FIG.
2 is a left side elevational view thereof; FIG. 3 is a rear elevational
view thereof; FIG. 4 is a top plan view thereof; FIG. 5 is a bottom plan
view thereof; FIG. 6 is a right side elevational view thereof; and, FIG. 7
is a front elevational view thereof.