The ornamental design for a wall-mounted guard for a pullstation, as shown and described.
FIG. 1 is a front perspective view illustrating my design for a wall-mounted guard for a pull station;
FIG. 2 is a front elevation view of my design for a wall-mounted guard for a pull station;
FIG. 3 is a right side view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a left side elevation view thereof, with the right elevation view being a mirror image thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a rear plan view thereof.
The broken line showing of a pull station is included for the purpose of illustrating portions of the “article” and forms no part of the claimed design.