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The ornamental design for a keyboard including trackball, as shown and described. |
FIG. 1 is a top plan view of a keyboard including trackball showing my new design;
FIG. 2 is a front elevational view of the keyboard including trackball of FIG. 1;
FIG. 3 is a rear elevational view of the keyboard including trackball of FIG. 1;
FIG. 4 is an elevational view of one side of the keyboard including trackball of FIG. 1;
FIG. 5 is an elevational view of the other side of the keyboard including trackball of FIG. 1; and
FIG. 6 is a bottom plan view of the keyboard including trackball of FIG. 1.
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