We claim the ornamental design for an electronic keyboard, as shown and described.
The patent or application file contains drawings executed in color. Copies of this patent or patent application publication with color drawings will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a plan view of the electronic keyboard according to the claimed design. The A-A lines shown in FIG. 1 do not constitute the design.
FIG. 2 is a bottom view of the electronic keyboard according to the claimed design.
FIG. 3 is a front view of the electronic keyboard according to the claimed design.
FIG. 4 is a rear view of the electronic keyboard according to the claimed design.
FIG. 5 is a left-side view of the electronic keyboard according to the claimed design.
FIG. 6 is a right-side view of the electronic keyboard according to the claimed design.
FIG. 7 is a cross-sectional view of the electronic keyboard, according to the claimed design, taken along the lines 7-7 shown in the plan view of FIG. 1, and shows a state with the internal mechanism omitted; and,
FIG. 8 is a reference perspective view of the electronic keyboard according to the claimed design.
The ornamental design which is claimed is shown in solid lines in the drawings and in colors. The colors shown in the drawings are an integral part of the claimed design. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. In FIGS. 1, 3, and 8, three buttons arranged between the yellow colored buttons and the green colored buttons are colored in a white color.