FIG. 1 is a side perspective view of a road milling machine showing my new design;
FIG. 2 is a side elevational view of the road milling machine of FIG. 1;
FIG. 3 is a side elevational view of the road milling machine opposite to the side shown in FIG. 2;
FIG. 4 is a top plan view looking downwardly in FIG. 3;
FIG. 5 is a bottom plan view looking upwardly in FIG. 3;
FIG. 6 is an end elevational view looking from left-to-right in FIG. 3; and,
FIG. 7 is an end elevational view looking from right-to-left in FIG. 3.
The broken lines in FIGS. 1, 3 and 7 are shown to define boundaries around portions of the article which are not part of the claimed design.