The ornamental design for a hopperwagon, as shown and described.
FIG. 1 depicts a perspective underside view of a hopper railway wagon in accordance with the invention with the inlet doors and the outlet doors closed;
FIG. 2 depicts a perspective view of the hopper railway wagon of FIG. 1 with the inlet doors open and the outlet doors closed;
FIG. 3 depicts an end view of the hopper railway wagon of FIG. 1 with the inlet doors and the outlet doors closed;
FIG. 4 depicts an end view of the hopper railway wagon of FIG. 1 with the inlet doors open and the outlet doors closed;
FIG. 5 depicts a side view of the hopper railway wagon of FIG. 1 with the inlet doors and the outlet doors closed;
FIG. 6 depicts a perspective view of the hopper railway wagon of FIG. 1 with the inlet doors and the outlet doors closed; and,
FIG. 7 depicts a top view of the hopper railway wagon of FIG. 1 with the inlet doors closed.
The broken lines shown in the drawings are for the purposes of illustrating portions of the article that form no part of the claimed design.