The ornamental design for a gravity propelled seat-carrying board supported by ground-engaging wheels, as shown and described.
FIG. 1 is a perspective view of a gravity propelled seat-carrying board supported by ground-engaging wheels showing our new design;
FIG. 2 is a side elevational view of the gravity propelled seat-carrying board supported by ground-engaging wheels, the opposite side being a mirror image thereof;
FIG. 3 is a rear elevational view of the gravity propelled seat-carrying board supported by ground-engaging wheels;
FIG. 4 is a front elevational view of the gravity propelled seat-carrying board supported by ground-engaging wheels;
FIG. 5 is a bottom view of the gravity propelled seat-carrying board supported by ground-engaging wheels; and,
FIG. 6 is a top view from the left of the gravity propelled seat-carrying board supported by ground-engaging wheels.