Tablet keyboard case

FIG. 1 is a perspective view of a tablet keyboard case showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left elevation view thereof;

FIG. 6 is a right elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a reference view thereof, showing the article in use;

FIG. 10 is a front perspective view in a closed position thereof; and,

FIG. 11 is a rear perspective view in a closed position thereof.

The additional broken lines seen in FIG. 9 showing the tablet and the stylus depict unclaimed environmental subject matter only and form no part of the claim, while all other broken lines depict portions of the tablet keyboard case that form no part of the claimed design.