FIG. 1 is a front perspective view of a sitting module with backrest showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a front perspective view of a second embodiment;
FIG. 8 is a front elevation view of a second embodiment;
FIG. 9 is a left side elevation view of a second embodiment;
FIG. 10 is a right side view of a second embodiment;
FIG. 11 is a rear elevation view of a second embodiment;
FIG. 12 is a top plan view of a second embodiment;
FIG. 13 is a front perspective view of a third embodiment;
FIG. 14 is a front elevation view of a third embodiment;
FIG. 15 is a left side elevation view of a third embodiment;
FIG. 16 is a right side elevation view of a third embodiment;
FIG. 17 is a rear elevation view of a third embodiment; and,
FIG. 18 is a top plan view of a third embodiment.