The ornamental design for a hairbrush bristle configuration, as shown and described.
This application is concurrently filed with U.S. Design application Ser. No. 29/600,925 titled Combined Hair Brush With Lid, and U.S. Design application Ser. No. 29/600,928 titled Dry Shampoo Hair Brush Applicator, the specifications of which are hereby expressly incorporated by reference in their entirety.
FIG. 1 is a front elevation view of the hair brush bristle configuration according to the new design;
FIG. 2 is a perspective view of the hair brush bristle configuration;
FIG. 3 is a side elevation view of the hair brush bristle configuration;
FIG. 4 is a top and bottom plan view of the hair brush bristle configuration;
FIG. 5 is a partial enlarged view of the hair brush bristle configuration in the area bounded by the broken-line box in FIG. 3;
FIG. 6 is a partial enlarged view of the hair brush bristle configuration in the area bounded by the broken-line box in FIG. 1; and,
FIG. 7 is a front view of the hair brush bristle configuration as used on a handle.
The features of the hair brush shown in broken lines in FIG. 7 form no part of the claimed design.