The ornamental design for a pull-up/chin-up apparatus having multi-angled bar grips, as shown and described.
FIG. 1 is a top perspective view of the new design for a pull-up/chin-up apparatus having multi-angled bar grips, attachable to a ceiling or other supporting structure, and the bar grips having an oval or elliptical cross-section;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front orthographic view thereof;
FIG. 4 is a rear orthographic view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is an exploded view of FIG. 2, with the bottom section separated from the top section of the apparatus; and,
FIG. 9 is a view of FIG. 3 with the bottom section of the apparatus removed.