The ornamental design for a combinationfuelcanister, as shown and described.
FIG. 1 is a perspective view of a combination fuel canister, embodying our new design;
FIG. 2 is a front view of the combination fuel canister of FIG. 1;
FIG. 3 is a rear view of the combination fuel canister of FIG. 1;
FIG. 4 is a left side view of the combination fuel canister of FIG. 1;
FIG. 5 is a right side view of the combination fuel canister of FIG. 1;
FIG. 6 is a bottom view of the combination fuel canister of FIG. 1; and,
FIG. 7 is a top view of the combination fuel canister of FIG. 1.
The broken lines of FIGS. 1-7 are illustrative of the visible environmental structure of the combination fuel canister and form no part of the claimed design.