I claim the ornamental design for a dispenser, as shown and described.
FIG. 1 is a front/right/top perspective view of a dispenser;
FIG. 2 is a rear/right/bottom perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The uniformly broken lines shown on the bottom of the dispenser bottle and attached side container represent the bounds of the claimed design. The dash-dot broken lines shown proximate the top of the container also depict the bounds of the invention. All other broken lines are directed to environment and are for illustrative purposes only; all of the broken lines form no part of the claimed design.