The ornamental design for a wheeledstandingboard for a baby carriage or stroller, as shown and described.
FIG. 1 is a front perspective view of a wheeled standing board for a baby
carriage or stroller, showing the top view, front view and right side view
with the wheels removed, showing my new design;
FIG. 2 is a rear perspective view showing the top view, rear view and right
side view thereof; and,
FIG. 3 is a bottom plan view thereof.
The left side view is a mirror image of the right side view.