The ornamental design for a chainsawcover for an electric knife, as shown and described.
FIG. 1 is a left side perspective view of a chainsaw cover for an electric knife showing my new design;
FIG. 2 is a front view of the chainsaw cover for an electric knife shown in FIG. 1;
FIG. 3 is a rear view of the chainsaw cover for an electric knife shown in FIG. 1;
FIG. 4 is a right side view of the chainsaw cover for an electric knife shown in FIG. 1;
FIG. 5 is a left side view of the chainsaw cover for an electric knife shown in FIG. 1;
FIG. 6 is a top side view of the chainsaw cover for an electric knife shown in FIG. 1; and,
FIG. 7 is a bottom side view of the chainsaw cover for an electric knife shown in FIG. 1.
The broken lines showing portions of the design in the figures are included for the purpose of showing features that form no part of the claimed design.