Keyboard

FIG. 1 is a front perspective view of a keyboard;

FIG. 2 is a rear perspective view of the keyboard of FIG. 1 ;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is an enlarged view of an encircled region 9 shown in FIG. 3 ; and,

FIG. 10 is an enlarged view of an encircled region 10 shown in FIG. 4 .

Dot-Dash broken lines seen in the drawing depict the boundary of the enlarged views and form no part of the claimed design. Dashed broken lines seen in the drawings depict portions of the keyboard that form no part of the claimed design.