I claim the ornamental design for the gas torch, as shown and described.
FIG. 1 is a left side view of an embodiment;
FIG. 2 is top plan view of the embodiment of FIG. 1;
FIG. 3 is a bottom plan view of the embodiment of FIG. 1;
FIG. 4 is a right side view of the embodiment of FIG. 1;
FIG. 5 is a rear view of the embodiment of FIG. 1 as seen from the right end; and,
FIG. 6 is a front view of the embodiment of FIG. 1 as seen from the left end.
The broken lines show portions of a gas torch which form no parts of the claimed design. The parallel “zig-zag” lines seen in FIGS. 1-4 are meant to represent a symbolic break in the length of the claimed design. The area in between the “zig-zag” parallel lines forms no part of the claimed design.