FIG. 1 is a perspective view of a first embodiment of a harmonic filter of my design;
FIG. 2 is a front view thereof;
FIG. 3 is a left-side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a perspective view of a second embodiment thereof;
FIG. 7 is a front view thereof;
FIG. 8 is a left-side view thereof;
FIG. 9 is a top view thereof;
FIG. 10 is a bottom view thereof;
FIG. 11 is a perspective view of a third embodiment thereof;
FIG. 12 is a front view thereof;
FIG. 13 is a left-side view thereof;
FIG. 14 is a top view thereof;
FIG. 15 is a bottom view thereof;
FIG. 16 is a perspective view of a fourth embodiment thereof;
FIG. 17 is a front view thereof;
FIG. 18 is a left-side view thereof;
FIG. 19 is a top view thereof;
FIG. 20 is a bottom view thereof;
FIG. 21 is a perspective view of a fifth embodiment thereof;
FIG. 22 is a front view thereof;
FIG. 23 is a left-side view thereof;
FIG. 24 is a top view thereof; and,
FIG. 25 is a bottom view thereof.