We claim the ornamental design for a handheld electronic pipette, as shown and described.
FIG. 1 is a perspective view showing a side and front of the handheld electronic pipette;
FIG. 2 is a rear view of the handheld electronic pipette;
FIG. 3 is a front view of the handheld electronic pipette;
FIG. 4 is a side view of the handheld electronic pipette;
FIG. 5 is a top view of the handheld electronic pipette; and,
FIG. 6 is a bottom view of the handheld electronic pipette.
The broken lines in the drawings are included for the purpose of illustrating portions of the handheld electronic pipette that form no part of the claimed design.