Keyboard case

FIG. 1 is a front and top perspective view showing of a keyboard case showing my new design;

FIG. 2 is a rear and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of the keyboard case in folded state;

FIG. 10 is a perspective view of the keyboard case in unfolded state; and,

FIG. 11 is another perspective view of the keyboard case in closed state.

The broken lines in the figures illustrate portions of the keyboard case that form no part of the claimed design.