FIG. 1 is a front perspective view of the dual blade folding knife with one blade shown in an open position;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right elevation view thereof;
FIG. 5 is a left elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front perspective view of the dual blade folding knife with a second blade shown in an open position;
FIG. 9 is a front elevation view of the dual blade folding knife of FIG. 8;
FIG. 10 is a rear elevation view of the dual blade folding knife of FIG. 8;
FIG. 11 is a right elevation view of the dual blade folding knife of FIG. 8;
FIG. 12 is a left elevation view of the dual blade folding knife of FIG. 8;
FIG. 13 is a top plan view of the dual blade folding knife of FIG. 8;
FIG. 14 is a bottom plan view of the dual blade folding knife of FIG. 8;
FIG. 15 is a front perspective view of the dual blade folding knife shown in a closed position;
FIG. 16 is a front elevation view of the dual blade folding knife of FIG. 15;
FIG. 17 is a rear elevation view of the dual blade folding knife of FIG. 15;
FIG. 18 is a right elevation view of the dual blade folding knife of FIG. 15;
FIG. 19 is a left elevation view of the dual blade folding knife of FIG. 15;
FIG. 20 is a top plan view of the dual blade folding knife of FIG. 15; and,
FIG. 21 is a bottom plan view of the dual blade folding knife of FIG. 15.
The broken lines depict portions of the dual blade folding knife in which the design is embodied that are not considered part of the claimed design.