The ornamental design for a honeycombfilter, as shown and described.
FIG. 1 is a perspective view of a honeycomb filter showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view of thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is an enlarged view of a portion defined by the intersection of lines 6-6 and lines 8-8 in FIG. 2 and line 6-8 in FIG. 4;
FIG. 7 is an enlarged view of a portion defined by the intersection of lines 7-7 and lines 9-9 in FIG. 3 and line 7-9 in FIG. 4;
FIG. 8 is a partially enlarged perspective view at 8 in FIG. 2; and,
FIG. 9 is a partially enlarged perspective view at 9 in FIG. 3.
The filter is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.