The ornamental design for a pull saw, as shown and described.
FIG. 1 is a perspective view of a pull saw showing our new design;
FIG. 2 is a left side elevational view showing the design for the pull saw of FIG. 1;
FIG. 3 is a right side elevational view showing the design for the pull saw of FIG. 1;
FIG. 4 is a top elevational view showing the design for the pull saw of FIG. 1;
FIG. 5 is a bottom elevational view showing the design for the pull saw of FIG. 1;
FIG. 6 is a rear elevational view showing the design for the pull saw of FIG. 1; and,
FIG. 7 is front elevational view showing the design for the pull saw of FIG. 1.
The broken line showing of portions of the pull saw in the drawings is included for illustrative purposes only and forms no part of the claimed design.